The Basenji dog is the only dog that is not able to bark.
4
When the "Elephant Whisperer" Lawrence Anthony died, a whole herd of elephants arrived at his house to mourn him.
25
There's a rare breed of pig that looks like a sheep.
14
Cats recognise the voice of their owner, but never evolved to care.
22
Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
24
The male seahorse carries babies and 'gives birth' to them instead of the female.
7