If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13
The elephant brain weighs about 6,000g.
274
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
The most expensive cow in the world was sold in 2009 for $1.2 million.
-3
On some poorly researched trivia lists it is stated as a fact that a pregnant goldfish is called a twit. This is not true as goldfish lay eggs.
71
In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
22