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.