The largest breed of rabbit is the Flemish Giant.
65
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
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
The most expensive cow in the world was sold in 2009 for $1.2 million.
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Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
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
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