1) Not all cattles are cows. 2) Cows change colour
1) The minke whale is the smallest baleen whales, while still up to 10 metres long. 2) Minke whales can reach speeds up to 23 mph
1) Giraffes are the tallest mammals (very obviously!). 2) They only have seven neck vertebrae, same as humans
1) Gemsboks are originally from southern parts of Africa. 2) They can live without drinking for weeks or even months
1) Maybe you're familiar with the first mammal cloned from a specialised adult cell, Dolly the sheep, who is born in Scotland. 2) Sheep recognise emotion on others' faces