Animal kingdom record breakers - how fast can a cheetah run, how heavy is an elephant and what's bigger than a dinosaur? Watch amazing video clips from the BBC archive and uncover the fascinating facts about our smallest primate, the longest stick insect and the most venomous snake. Meet the biggest, the fastest and the deadliest the natural world has to offer.
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Top predators
Hatzegopteryx is the largest flying vertebrate ever known.
Hatzegopteryx is the largest flying vertebrate ever known.
Weighty wanderers
The world's largest seabird chicks.
The wandering albatross has the largest wingspan of any living bird, and what better way to show off these outsize albatross chicks, than to have Sir David sit next to one? Fortunately the chick was well behaved - they are known to use projectile vomit as a way to ward off unwanted visitors!
Supermum
African elephants have the longest pregnancy of any animal.
Roaming the plains, the African elephant is the largest living land mammal and has the longest pregnancy of any animal.
Inside the blue whale
The anatomy of the largest mammal ever to have existed.
Everyone has heard of the blue whale, yet they are rarely seen and not often filmed. Sir David's delight at the privileged close up view of one of these ocean giants as it breached right beside him is evident. Although difficult to comprehend, at 30 metres in length and 180 metric tons or more in weight, the blue whale is the largest animal ever known to have existed.
Speed sensation
The cheetah's body is superbly designed to run at top speed.
The cheetah's body is superbly designed to run at top speed, and reaching speeds of more than 65mph, the cheetah is the fastest animal on land.
African bush elephant
African bush elephants are the largest living land mammals and the second tallest after...
Argentinosaurus
Argentinosaurus currently holds the record for being both the heaviest land animal ever,...
Atlantic sailfish
Atlantic sailfish are found in tropical and temperate parts of the Atlantic Ocean,...
Yunnan snub-nosed monkey
Yunnan snub-nosed monkeys live at the highest altitude of any primate, except for...
Blue whale
Blue whales are the largest animals ever to have lived - bigger even than the largest of...
Hot vent crabs
Hot vent crabs are only found around hydrothermal vents, hydrothermal seeps and...
Capybara
Capybaras are the largest of the rodent species.
Cheetah
Cheetahs are found in sub-Saharan Africa and Northern Iran.
Doria's Tree-Kangaroo
Doria's tree kangaroos are the heaviest tree-dwelling marsupials in the world.
Elephant birds
Madagascar's giant, flightless elephant birds were once a common sight on the island,...
Galápagos giant tortoise
Galápagos giant tortoises were studied by Charles Darwin when he made his famous visit...
Giant anteater
Giant anteaters, as the name suggests are the largest of their family, and equipped with...
Giant tube worm
Giant tube worms grow to over 2 metres long and inhabit the hot waters around...
Goliath bird-eating spider
Goliath bird-eating spiders are
Great bustard
Great bustards are quite possibly the heaviest flying birds in the world.
Human
Humans are in the same great ape family as the chimpanzees, gorillas and orangutans -...
Inland taipan
Australia's inland taipan is...
Insects
The insects are one of the most successful types of living organism, with roughly half...
Madame Berthe's mouse lemur
The minute Madame Berthe's mouse lemur is believed to be the world's smallest living...
Periodical cicadas
Large numbers of periodical cicadas emerge from the ground every few years, instead of a...
Millipedes
Millipedes are a common class of arthropod with over 10,000 named species.
Mouse lemurs
Mouse lemurs, like all the other lemurs, are native to Madagascar.
Stick insects
Stick insects use camouflage and mimicry to great effect.
Poison dart frogs
Poison dart frogs are so named because their poisonous secretions have been used by...
Polar bear
Remarkable adaptations allow polar bears to live in the frozen
Pompeii worm
Pompeii worms live in the hot water around hydrothermal vents in the Pacific Ocean and...
Pygmy parrots
Pygmy parrots, as their name suggests, are the smallest members of the parrot family and...
Red-billed quelea
Red-billed queleas are a kind of weaver bird and form flocks which can contain thousands...
Red kangaroo
Red kangaroos are iconic symbols of the Australian outback, and are the largest living...
Ruppell's vulture
Ruppell's vultures, named after a German explorer, are large African vultures.
Sea otter
Sea otters are one of the largest otter species.
Sperm whale
The mighty sperm whale is a multiple record-breaker.
Tarantulas
Tarantulas have large, hairy bodies that make them the stuff of nightmares for many, but...
Tisza mayfly
The giant or Tisza mayfly is Europe's largest species of mayfly.
Wandering albatross
Wandering albatrosses hold the record for the bird with the largest wingspan, with some...
Whale shark
Whale sharks are the largest fish in the world, with the longest ever recorded at over...
Great Basin bristlecone pine
Great Basin bristlecone pines are restricted to the mountain ranges of California,...
Giant sequoia
In terms of volume, giant sequoias may be the largest living things on the planet.
Titan arum
Titan arums are true giants amongst flowering plants: the circumference of their huge...
Hydrothermal vents
Hydrothermal vents - black smokers, white smokers and warm water vents - are areas on...
Lakes and ponds
From the smallest pond (1m square) to the largest lake, this biome provides many...
Shallow seas
Shallow seas cover the continental shelves.
Warning colours
Warning colours (aposematism) describes colouration and other markings that send a...
Adapted to swimming
Adaptations for swimming enables animals to move around in water.
Courtship display
Courtship displays are performed by animals seeking to advertise their willingness to...
Adapted to flying
Flying, in its true sense, is the ability to move through the air under your own power...
Adapted to jumping
Jumping is a method some animals have evolved to get around efficiently.
Maternal care
Maternal care is where the mother of the offspring provides most or all of the effort...
Metamorphosis
Metamorphosis is when a species changes body shape and structure at a particular point...
Parasitic
Parasitic organisms have a close relationship with another organism, which they use...
Poisonous
Poisonous animals contain or secrete toxins and need to be touched or eaten to...
Pollinator
Pollinators carry pollen from plant to plant and, often unwittingly, play a crucial role...
Predator
Predators are creatures that catch and kill other animals for food.
Cold tolerant
Cold tolerant organisms have evolved various methods for coping with very low...
Adapted to running
Running and walking evolved as a method of getting around when life emerged from water...
Scavenger
Scavengers are those carnivorous animals that eat carrion (already dead animals) rather...
Semelparous
Semelparous organisms reproduce only once in their lives and then die.
Spawning
Spawning animals deposit a mass of eggs and sperm in water, where they meet and are...
Symbiotic
Symbiosis is a relationship between two organisms that's beneficial to one (commensal)...
Heat tolerant
Heat tolerant animals and plants have special adaptations for survival in hot places.
Echolocation and ultrasound
Ultrasound is high frequency sound that's above the range of human hearing.
Venomous
Venomous organisms inflict poisonous wounds by actively biting, stinging or scratching...
Viviparous
Viviparous animals bear live young that have developed inside the mother's body.
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