Animal fact 1:
Horses sleep while standing up.
Horses are completely relaxed while standing because of their body structure. Therefore horses can sleep while standing and in fact it is better than lying down. Horses have delicate bones and their body weighs a lot; they can get injured if they lay down for too long.
Occasionally, horses do take a rest lying down when they feel safe.
Animal fact 2:
Hummingbirds are the only birds that can fly backwards.
They fly backwards when they finish feeding on nectars and reverse from a flower.
Hummingbirds also have the highest metabolism of all animals when they are flying.
Animal fact 3:
Polar bears have black skin and their fur is not white.
Polar bear fur looks white but is actually transparent. The core of the hair shaft is hollow and they can reflect sun light.
Animal fact 4:
Only the female mosquito bites.
The normal diet for mosquitoes are nectar and plant juices, not blood. However, the female mosquito can obtain more nutrients from blood than other food enabling her to produce eggs. The reason for the blood sucking behaviour is to obtain proteins as materials for egg production.
Animal fact 5:
Giraffes can clean their ears with its tongue.
The giraffe’s tongue is about 50 cm long. Their main diet is the leaves on tall trees therefore the long tongue can help them reach their food. Of course they can also use it for grooming and cleaning noses.
Animal fact 6:
Crocodiles can’t stick their tongues out, as it is attached by a membrane to the bottom of its mouth. The movement is limited so sticking the tongue out is not an option.
They have the strongest bite in the whole animal kingdom by far. The pressure of a human’s bite is about 120 pounds whereas a crocodile’s bite is more than 5000 pounds per square inch.
Crocodiles bite hard but you can shut their mouth easily because their jaws are opened by a weak set of muscles.