A newly born panda (baby) is smaller than a mouse.
True.
Cows can sleep standing up.
True
A shrimp's heart is in its' head.
True.
Polar bears have white skin.
False. They have black skin, but their transparent hair make it look it's white.
Octopuses have four hearts.
False. They have three hearts.
Kangaroos can fart.
False.
Elephants can jump.
False.
A snail can sleep for three years at a time.
True.
A rhinoceros' horn is made of hair.
True.
Sharks are good at hearing.
True.
Dogs are better at smelling than humans.
True.
Reindeer eyeballs cannot change their colour.
False. Their eyeballs turn blue in winter to let them see better.