A hippo must stay moist because if its skin dries out it will crack.
A typical porcupine’s body is covered in 30,000 razor sharp quills.
A dead adult male tiger can sell for US$10,000 or more on the black market .
You can tell the age of a whale by counting the rings in its earwax.
The world’s largest cattle station, Anna Creek Station in Australia, is larger than Israel.
The stripes on each tiger are unique, like human fingerprints.