1) Horses can sleep standing up or lying down. 2) They can only breathe through their nose (rather than mouth)
1) Mice are very good jumpers, climbers, and swimmers. 2) They eat between 15-20 times a day
1) Rats can hear well, including those very high-pitched sounds for humans. 2) Rats were among the first animals to travel to space
1) Rhesus has the widest geographic range of any non-human primates. 2) In the wild, they can live up to ~18 years old
1) Babies have more bones than adults. 2) Our ears never stop growing
1) Chimps share 95-98% of their DNA with humans. 2) They use tools than any other animal except humans