Top 10 mammals factsMammals quiz
Is this a male, or a female cat?
A female. This kind of coat coloring, which combines two colors other than white (black and red in this case), is known as tortoiseshell, and it is found almost exclusively in female cats. This is because the X chromosome determines the color of the cat, and there are no color genes in Y chromosome. Thus, female cats with XX chromosomes may be three colored (including white), while male cats with XY chromosomes cannot. (with the exception of very rare XXY sterile males).
Which rodent has the highest ratio of brain mass to body mass?
Beaver a large semiaquatic broad-tailed rodent that is native to North America and northern Eurasia. It is noted for its habit of gnawing through tree trunks to fell the trees in order to feed on the bark and build dams. Beaver has the highest ratio of brain mass to body weight among rodents, which is reflected in the behaviour and the ability to act not only instinctively, but also logically.
Which mammal is venomous and dangerous to humans?
Platypus. The venom produced in the crural glands of the male platypus is not lethal to humans. However, it produces excruciating pain which does not respond even to morphine; sometimes the pain develops into a long-lasting hyperalgesia that can persist for months. Some biologists suggest that the venom may work directly on the brain's pain receptors. Other venomous mammals are small insectivores and vampire bats, which produce toxic saliva.
Which mammal cannot regulate its body temperature?
Sloth. Unlike other mammals, sloths cannot regulate their body temperatures, so they can only live in warm rainforest, where temperature varies little in the course of the year. Sloths have very low metabolic rates and maintain low and variable body temperatures (30–34°C or 86–93°F), regulating it by moving in and out of the shade in trees.
Which mammals have the best sense of smell?
Bears. The area of nasal mucous membrane in a bear's head is 7 times greater than a bloodhound's (and one hundred times larger than in a human's). Polar bears have been seen to march up to 40 miles in a straight line to reach a prey animal they have detected.
Which domestic animal has the largest number of breeds?
Sheep husbandry is practiced throughout the majority of the inhabited world, and has been fundamental to many civilizations. FAO (Food and Agriculture Organization of the UN) identified 1229 breeds of sheep as of 2006. Almost all sheep are classified as being best suited to furnishing a certain product: wool, meat, milk, hides, or a combination in a dual-purpose breed.
What is the inventive hunting technique of humpback whales?
Bubble net. A group of whales swims in a shrinking circle blowing bubbles below a school of prey. Forage fish show a strong fear of bubbles and can be easily contained within a bubble curtain. The shrinking ring of bubbles encircles the school and confines it in an ever-smaller cylinder. The whales, then suddenly swim upward through the "net", mouths agape, swallowing thousands of fish in one gulp.
A liger is a hybrid cross between a male lion and a tigres. What are ligers best known for?
Large size. Ligers are the largest known cats in the world, reaching over 400 kg. In contrast, pumapards (hybrids between pumas and leopards) tend to exhibit dwarfism.
Which mammal has the fattest milk?
Seal. Sea mammals are warm-blooded, but live in cold waters - so they really need the isolating layer of fat. Dolphin milk contains 35% of fat, seal and whale - up to 50%. It is twelve times more than in human or cow milk.
What animal is that?
Goat. The horizontal pupils allow wide panoramic vision. Because goats' irises are usually pale, their pupils are much more noticeable than in animals such as cattle, deer, horses and sheep, whose similarly horizontal pupils blend into a dark iris.