Hedgehog quills are not barbed or poisonous. Hedgehogs do apply a foamy, foul-tasting saliva to their quills, which protects the animals from predators.
Catnip can affect lions and tigers as well as house cats. It excites them because it contains a chemical that resembles an excretion of the dominant female's urine.
The hum of a hummingbird comes from the super-fast beat of the wings. The smallest ones beat their wings the fastest — up to 80 times per second. Even the slower beat of bigger hummingbirds (20 times per second) is so fast you can only see a blur.
The hum of a hummingbird comes from the super-fast beat of the wings. The smallest ones beat their wings the fastest — up to 80 times per second. Even the slower beat of bigger hummingbirds (20 times per second) is so fast you can only see a blur.
The basenji is a mid-sized dog with a silky copper coat. Although they are considered a barkless dog, they are known to yodel when they are happy
Octopi and squid have three hearts. Their main systemic heart pumps blood throughout the circulatory system, and two branchial hearts provide some additional push at each of the paired gills.
Hens do not have to be impregnated to lay eggs. The rooster is necessary only to fertilize the egg.
Cats are the only domestic animals that walk directly on their claws, not on their paws. This method of walking is called "digitigrade". When cats scratch furniture, it isn't an act of malice. They are actually tearing off the ragged edges of the sheaths of their talons to expose the new sharp ones beneath.
The hummingbird is the only bird that can fly backwards.
The bat is the only mammal that can fly.
Of all known forms of animals life ever to inhabit the Earth, only about 10 percent still exist today.
Hippopotamuses have killed more people in Africa than all the lions, elephants, and water buffalo combined, usually by trampling.
Cats have amazing hearing ability. A cat's ear has 30 muscles that control the outer ear (by comparison, human ears only have six muscles). These muscles rotate 180 degrees, so the cat can hear in all directions without moving its head.
The hummingbird's tiny brain, 4.2% of its body weight, is proportionately the largest in the bird kingdom.
The Bateleur eagle of Africa hunts over a territory of 250 square miles a day.
Of the 250-plus known species of shark in the world, only about 18 are known to be dangerous to man.
Horned lizards eat ants. They wait in areas where ants are working and when one passes by, they flick out their tongue, catch their prey, and swallow without chewing. Apparently their digestive tract is immune to bites and stings.
Cats have more than one hundred vocal sounds, while dogs only have about ten.
The beluga whale is often referred to as the "sea canary" because of the birdlike chirping sounds it makes.
Off the coast of southern California, around 200 bison still roam in Catalina Island's hinterlands, descendants of a few brought there in the 1920s for a movie and left there.
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