When cats are happy, they may squeeze their eyes shut.
10
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
Bats sleep 18-20 hours per day.
5
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23