A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
The oldest recorded elephant lived for 82 years.
213
The octopus does not have a blind spot.
273
The cat brain weighs about 30g.
167
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11
Mahatma Gandhi used to travel with his goat so that he could have fresh milk.
11
There's a rare breed of pig that looks like a sheep.
14