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nature is not a place to visit it's our home nature is all that we see animals insects disappearing into their surroundings using deceptions disguises lures nature is all that we hear the call of an eagle the hiss of Ocean Spray the
Episode 1 of World of the Wild explores the Amazon rainforest through its anacondas, sloths, caimans, tarantulas and river dolphins, and the threats they face.
Key Takeaways
- The Amazon's species are deeply interdependent, and the loss of one habitat threatens the whole ecosystem.
- Many Amazonian animals have evolved specialized adaptations for hunting, camouflage, and surviving seasonal extremes.
- Climate change, habitat loss, and hunting or trade pressures are the major threats to Amazonian wildlife.
- Protecting the Amazon is essential both for its unique species and for the planet's climate.
What the video covers
- The Amazon spans nine countries and about 5.5 million square kilometers, making it the world's largest rainforest and one of the most biodiverse places on Earth.
- Anacondas, the largest snakes in the world, are expert swimmers that hunt fish, turtles and caimans, using heat-sensing organs and constriction to subdue prey.
- Anacondas are ectothermic and thrive in the Amazon's year-round warm climate of about 27°C; humans are their greatest threat due to hunting for their skin.
- Sloths are walking ecosystems whose fur hosts moths, beetles, cockroaches and a unique algae that provides camouflage and supplements their poor leaf-based diet.
- Sloths conserve energy by moving slowly and rarely, which keeps them hidden from predators such as jaguars.
- Caimans are apex predators of Amazonian waters with excellent night vision, and they survive long dry seasons by slowing their metabolism and reducing hunting.
- Climate change threatens caimans because sex determination in crocodilians depends on incubation temperature, raising concern about male-skewed populations.
- Tarantulas, which use sensitive hairs to detect vibrations and chemical signals, ambush prey from burrows and are threatened by habitat loss and the pet trade.
- The Amazon River dolphin uses echolocation to hunt in murky water and is threatened by fishing pressure and changing flood patterns.
- Deforestation has slowed due to conservation efforts, but the Amazon continues to shrink, requiring stronger protection.
Full Transcript — Download SRT & Markdown
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Rumble of Thunder the doings of a cricket the wonderful beauty of nature The crucial fragile Affinity between animal life and their environment all of this is world of the Wild the Amazon spread over nine countries and five and
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a half million square kilometers this is the world's largest rainforest and one of the most biodiverse places on the planet [Music] teeming with life much of which is still unknown to science this episode examines some of the Amazon's most iconic inhabitants
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the Colossal Anaconda the easy-going sloth the cold-blooded Caiman the hair-raising tarantula and the Mysterious Amazon River dolphin in a place filled with Legends none of gripped the human imagination quite like the Anaconda with a strangle hold over the twisting
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morass of swamps marshes and streams that comprise the Amazonian Wetlands the Anaconda family consists of five species among them the largest snake in the world while the gargantuan proportions of a green anaconda are subject to Wild speculation what is certain is that all
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anacondas are perfectly adapted to the waterways of their rainforest home relatively slow and cumbersome on the land the Anaconda utilizes the murky river system to travel effortlessly and to hunt with ruthless efficiency able to remain submerged for over 10
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minutes they are expert Hunters of the fish Turtles and Cayman that inhabit the Abundant Waters of the Amazon but that's not all the entire jungle ecosystem is dependent on its waterways and here the waterways give the Anaconda license to rule
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High set eyes and nostrils allow it to remain almost entirely hidden in the water while laying in wait for the land-based prey anacondas will eat anything they can overpower and for a snake this big few in the Amazon are safe
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foreign like all reptiles anacondas are ectothermic obtaining their body heat from their environment the Amazon rainforest year-round average temperature of 27 degrees Celsius makes this paradise for big snakes beneath the thick jungle canopy of the Amazon darkness comes quickly
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but the Anaconda has adapted to hunt without light specialized sense organs around the lips detect body heat the flickering Fork tongue takes chemical cues from the air and sensitive skin detects sounds and vibrations on land and in water
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foreign [Music] onto its prey with hundreds of razor-sharp teeth it's not the anaconda's bite that kills a non-venomous snake the Anaconda employs its long muscular body to coil around its jungle prey and patiently suffocate them [Music] meals are swallowed whole
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disengaging the lower jaw the snake can stretch its mouth around food far bigger than its head with the menu as wide as its gape the Anaconda preys on all that the Amazon has to offer a top-order predator of the Amazon the
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greatest threat to the deadly Anaconda is from man prized for their legendary status as well as their magnificent skin the surprisingly shy and Elusive nature of these snakes has so far kept them safe allowing the legend to continue to grow
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[Music] [Music] from the waters to the trees the Amazon rainforest is a densely interwoven ecosystem and one humble creature is the true embodiment of this [Music] sloths are the most prevalent tree dwelling mammals in South America they are also the least conspicuous concealed
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within the rainforest canopy sloths display a distinctive preference for the widely distributed sacropia tree also known as the sloth tree coexist as one with the jungle to the point where their coat is a jungle in microcosm considered walking ecosystems sloths
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bodies are covered in thick coats that Harbor their own animal and plant life with the Amazon's almost daily rainfall and high humidity the sloth provides a hairy habitat for moisture-seeking moths beetles cockroaches and a specialized form of algae
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found nowhere else in the world this host Pacific microorganism has evolved with the sloth and is passed on to infants as they cling to their mother's fur [Music] while the algae AIDS in camouflage this symbiotic relationship also extends to
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the sloth's diet as folivores the sloth's main food source is leaves which are not only tough to digest but provide little energy by growing and consuming their own algae Gardens sloths are able to boost their nutritionally poor diet
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[Music] their diets sloths carry around 20 percent less muscle tissue than most mammals lacking the ability to make a quick getaway sloths are at the mercy of Amazon's many predators predators like the Jaguar [Music] an expert climber sloths can do little
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to defend themselves from this feline flow but little is exactly what they do for great parts of the day sloths only move when necessary hence the name sloth often remaining in the same tree for years when sloths do move they are quiet
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gentle and slow minimizing disturbance to the foliage and never calling attention to themselves in this way a lack of speed is advantageous the sloth's economy of movement leaving Predators completely oblivious to their presence in their own effortless style sloths are
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masters of the Amazon but their success in the rainforest has come at a cost with sloths unable to survive outside their specific habitat as the embodiment of the interconnectivity of the Jungle to preserve the Amazon is to preserve the
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sloth [Music] the vast expanse of the Jungle its rainforest and river systems its mangroves and marshes has fostered a diversity of life and a diversity of Cayman [Music] members of the Ancient Order of crocodilians Cayman are another apex
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predator of the Amazon's waterways with six species from the diminutive dwarf Caiman to the mighty five meter long black caiman all are found in the Amazon once covering most of South America the Amazon rainforest is over 55 million
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years old foreign with this ancient environment the cayman's lineage is even more prehistoric and they are considered among the most perfectly adapted creatures on the planet propelling themselves through the water with their thick powerful tails and webbed feet Caiman are excellent
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swimmers with dominion over the Amazons rivers and lakes hunting primarily by sight their large eyes have vertical pupils allowing for excellent night vision an additional transparent eyelid grants protection and clearer vision while stalking beneath the surface of the
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Amazon's waterways snatching prey in their powerful toothy Jaws they are opportunistic predators taking advantage of whatever food source is most abundant with a wide diet including fish amphibians insects and snails as well as other reptiles and large mammals for cayman the Amazon is a
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smorgasbord foreign but the Amazon also knows privation during the annual dry season the waters recede and ecosystems once connected by floodplains and streams become cut off reducing the cayman's hunting grounds but Cayman are equipped to wait the dry
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season out able to go for months without food [Music] conserving energy they reduce their hunting activity being cold-blooded no energy is wasted on producing heat instead drawing it from the environment when times get really tough Caymans can resort to cannibalism
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[Music] climate change poses a more existential threat the sex of crocodilians is determined by temperature while incubating in their eggs when held at around 30 degrees Celsius hatchlings tend to be female just four degrees higher and the hatchlings are
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predominantly male with global warming scientists are concerned about the possibility of an overpopulation of male caiman will this ancient species be able to adapt to a rapidly changing world Cayman have bounced back before once hunted to near Extinction for their
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valuable liver hide this led to an imbalance in the Amazon ecosystem strict anti-hunting laws and protected habitats have made the Caiman a conservation success story in the Amazon and their return to the top of the food chain has played an important role in
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maintaining the balance of the Amazon's fragile ecosystem foreign undergrowth a whole other world exists with sunlight blocked out by the thick rainforest canopy above this Shady humid environment is littered with decomposing plant and animal matter returning nutrients to the Jungle ecosystem
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but the rainforest floor is also home to a surprising abundance of life a staggering 90 percent of all the creatures that live in the Amazon are arthropods a group of invertebrates with external skeletons arthropods include insects centipedes scorpions and spiders
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[Music] with an estimated 3600 species of spider in the Amazon one species is arachnophobia personified the tarantula inhabiting the planet since the age of the dinosaurs there are over 800 species of tarantula spread over most of the world
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[Music] tarantulas are the biggest of the spiders and the biggest of the big are found in the Amazon here tarantulas can grow to the size of dinner plates occupying underground burrows or tree Hollows unlike many spiders tarantulas do not use their web to catch prey
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preferring instead to Ambush them laying in weight in their burrow entrances tarantulas are coated in sensitive hair that helps them detect prey called seta These Fine sensory organs are used to pick up on vibration identify chemical signatures akin to
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smell and possibly even detect sound this coating of seta allows tarantulas to determine the location and size of approaching Quarry before they see it look the typical tarantula diet consists mainly of insects frogs small lizards and even mice
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the enhanced proportions of Amazonian tarantulas means that they are capable of tackling larger preys thank you [Music] when the victim is within range the tarantula launches its attack using its legs to grab hold of its Quarry and paralyzing it with Venom once the victim
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is dead tarantulas administer an injection of digestive enzymes liquefying their meals and sucking them up through straw-like mouths despite the tarantula's fearsome appearance they pose little threat to man man on the other hand poses a threat to tarantulas through habitat destruction
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and the pet trade fortunately in the case of the Amazon all indications are that the tarantula population is continuing to thrive foreign ing 40 of South America each year the Waters of the Amazon River burst their Banks transforming lowland jungles into
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enormous flood Plains [Music] Amazon river dolphins also known as boto dolphins are the largest freshwater dolphin in the world and a mystery of the animal kingdom [Music] while much remains Unknown about these unique creatures they are the unlikely
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Specialists of the Amazon River [Music] live their entire lives in the turbid waters of the Amazon and its tributaries leading to a set of very specific adaptations the botos long broad flippers and low dorsal fin granted extreme maneuverability even in shallow
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water thank you unfuse neck vertebrae allow river dolphins to turn their heads 180 degrees to either side a vital adaptation in navigating a choked Maze of submerged obstacles sweeping their heads from side to side the botos employ an advanced
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echolocation system to navigate and to locate prey with pinpoint accuracy with small eyes there is uncertainty as to how well photos can see but hunting fish Turtles and crustaceans in the dark Muddy Waters of the Amazon it is certain
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that they do not rely on eyesight an enlarged hump on their heads helps Focus their sonar and an elongated snout enables the dolphin to extract food from hiding places in Hollow logs or submerge thickets of vegetation however these specialized adaptations
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have come at a cost speed river dolphins are far slower than their distant relatives in the oceans but being slow does not disadvantage the boto because within the Amazon it has no natural predators no predators that is except for man
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traditionally Amazonian tribes protected the boto believing them to be semi-divine beings capable of shape-shifting into human form today industry and fishing threatened the boatos habitat and the food source they depend on to survive climate change is another threat placing
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an additional strain on fish stocks and bringing unpredictability to the Amazon's annual floods unable to survive in salt water the Amazon River dolphin has nowhere else to go with the population of this mysterious species difficult to determine the only short way of
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protecting them is the preservation of the Amazon's precious River ecosystems [Music] [Applause] [Music] rainforests are believed to contain more than half of all the plant and animal species on Earth as well as countless others waiting to be discovered
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in the case of the Amazon we have seen the Anaconda the sloth the Cayman the tarantula and the boto dolphin [Music] [Music] thank you [Music] yet the influence of the Amazon stretches far beyond its borders considered the lungs of the planet it
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produces around 20 percent of the world's oxygen and stops greenhouse gases from entering the atmosphere but at current rates of deforestation in as little as 50 years the vast Wilderness of the Amazon May no longer exist [Music] foreign
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[Music] conservation efforts have been successful in reducing deforestation but the Amazon is still shrinking the planet needs its lungs now more than ever and greater protection is required to sustain the Amazon in order for it to continue sustaining us
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[Music] thank you [Music]
Topics:Amazon rainforestanacondaslothcaimantarantulaAmazon river dolphinbiodiversitywildlife documentaryrainforest conservationnature
