Bone vs keratin, branched vs unbranched, shed vs permanent ... Ben Garrod explains what sets antlers apart from horns.
Black-tailed prairie dogs.
The figures below represent the maximum offspring that one could expect a wild female of each species to have in her lifetime. Factors such as food availability will have an impact on these numbers for any individual.
Guess how long a gorilla lives? Answer: 35 years. And what about tigers, tapirs, bats and bears? Our top 10 reveals the surprising lifespans of some of our fellow mammals.
The latest scientific news reveals that lemmings bark to warn of their bite. 
Polar bear warning sign
You may want to say tiger or polar bear, but cats, dogs and deer can also cause serious harm. Meet 7 of the most deadly mammals.
New research reveals that orangutans have a way of amplifying their alarm calls.
Cheetah running
How does Usain Bolt’s top speed compare to the top speed of a cheetah? Who is Britain’s fastest land mammal? Find out the answers. 
Wild rabbit
The latest scientific news reveals that rabbits in cities downsize their accommodation. 
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