Nigel stakes out a sett to show how to film this illusive mammal's fascinating behaviour.
You want to head out and film wildlife, but how do you find it? Simon King gives his tips.
Professor Alice Roberts asks how did Smilodon use it's terrifying teeth?
Great Bear Stakeout watches the every move of a population of grizzly bears.
The thick, folded skin of the rhinoceros looks almost like armour plating.
The hedgehogs spiky armour would put off any prospective mother-to-be.
The discovery of a new powerfully built ape fuelled stories of savage beasts.
A vampire bat feeds on the blood of a pig after opening a wound in its leg.
Could the hyaenas adult physiology explain their complex sexual behaviour?
Spotted hyaenas are far more remarkable than their evil, cackling scavenger label.
The most common African carnivore spotted hyaenas are the hunter-scavenger top dog!
The largest of the primates, gorillas aren't as savage as they were once thought to be.
Hedgehogs are a famously spiny mammal distantly related to shrews.
Rhinos are easily identified by their distinct facial horns and thick, grey skin.
Helping to protect the Siberian tiger is a daunting prospect!
Mammals include the largest and most successful animals on the planet.
Watch a clip of the series covering Lions on the Move.
There were more than just lions in Lions on the Move... There were hyenas too!
Kevin Richardson makes sure his lions and hyenas live as enriched of lives as possible.
The technology used to film this stunning series helped gather some incredible images.
View images of Sir David Attenborough as he presents Gorilla Revisted.
Leandro is the Jaguar Man, check out our gallery of photos from the programme.
Australian Brolga rescues baby kangaroos from the roadside and nurses them back to health.
Famous for their epic migrations, wildebeest herds are a sight to behold.
Hedgehogs are renowned for their spiky, modified guard hairs.
Everyone has a soft spot for the iconic orang-utan, the king of the swingers.
Up and down the coastline, Nigel Marven meets whale-watchers, scientists and researchers.
Years of research led staff to a disturbing conclusion; elephants may be killing rhinos.
Cheetahs are the fastest land animal on earth, keeping up with them is a struggle.
Baby hippos can still weigh around the same as an adult human.
Here are some remarkable pictures from the stunning series Madagascar.
African elephants are even larger than there Asian relatives.
Tigers are the largest of all the cats and one of the most deadly!
Sometimes you need a wide angle lens to fit the world’s tallest land animal into a photo.
Lions are the sociable members of the cat family.
Locked on the island of Madagascar, it's no wonder lemurs are so unique!
The big cats are some of the biggest land predators on the planet!
Baby monkeys can tug at the heart strings of even the sternest of people.
From snow leopard cubs to white tiger cubs, learn more about the big cats' young.
See images of the magnificent big cats from Lion County in our photo gallery.
Tiger: Spy in the Jungle captures the day-to-day lives of four tiny tiger cubs.
Their trunks, tusks and immense size sets elephants in a class of their own!
Sir David Attenborough on the gigantic blue whale.
Sir David Attenborough talks about interacting with gorillas.
Zoologist and TV presenter Charlotte Uhlenbroek does a rendition of a pant hoot.
Charlotte Uhlenbroek tells how she saw a chimp wiping the dirt off his hand with a leaf.
Sir David Attenborough talks about Madagascan lemurs.
Simon Reeve talks about his close shave with a pack cheetahs.
David Youlden aims to reintroduce captive lions back into the wild.
A long spiral tooth sticking out the front of your face must be quite cumbersome.
Counterintuitively, the zebra's stripes acted as camouflage on Victorian England streets.
Who would have thought that naked mole rats would have something in common with termites?
You can't think of elephants without immediately picturing that long trunk.
The question "why do zebra have stripes?" is one that has been asked a thousand times.
The exact function of the narwhal's tusk has troubled scientists for years.
Simply striped horses or are they patterned marvels?
The spiral tusk typifies this extraordinary whale.
The curious African burrowing rodent with a set of very unusual adaptations.
When first discovered it was so odd that it was thought to be a hoax.
Simians are classified as the higher primates, and include apes and monkeys.
Getting close to the Madagascan locals can be an astonishing experience.
More than 50,000 camels and cattle are bartered at this livestock fair in India.
Superbly adaptable raccoons seem to eat almost anything.
Bats are unique among mammals, they can fly!
Learn all about everyone's favourite semi-aquatic mammal with our otter facts.
Wolves capture our imagination for their fierce loyalty and devotion.
One of the world's most exciting wildlife shows happens in Kenya at the end of July.
No cages - just you and the world's largest primates, deep in the jungle.
Dolphins are a kind of toothed whale and are incredibly intelligent.
The cetaceans include both the baleen and toothed whales.
Polar bears are the largest land carnivores on Earth.
With as few as 15,000 orangutans left in the wild, a personal encounter is magical.
Seeing a tiger in the wild is a rare and unforgettable experience.
No visit to New Zealand is complete without spotting its spectacular marine life.
The Arctic Weddell seals were named after British sailor, Captain James Weddell.
Find out more about these magnificent creatures and their behaviour.
Why do elephants favour one tusk? Do they really never forget?
Zebras evolved among the Old World horses within the last 4 million years.
Big cats include lions, tigers, leopards, jaguars and cheetahs.
Sloths have come to symbolise laziness but these magnificent animals aren't boring!
The isolated island of Madagascar is famous for its lemur inhabitants.
The world’s tallest land animal, giraffes are one of the most unique species on Earth.