Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
Alligators can live up to 100 years.
337
Cats and dogs can hear ultrasound.
350
The most expensive cow in the world was sold in 2009 for $1.2 million.
-3
15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1