Top 10 zoology facts Selected as the most interesting among zoology related questions in Zoology quiz How do baby birds get oxygen inside their eggs?Oxygen comes in through pores in the shell. Directly under the shell, there is a small pocket of air. The microscopic pores on the egg surface allow the CO2 to escape and fresh air to get in, so a developing bird can breathe.Created by: Kasiahard simple questions facts » What color is octopus blood?Blue. Both squids and octopuses have blue blood. They use an oxygen-carrying molecule in their blood called hemocyanin that contains copper. In cold conditions with low oxygen pressure, hemocyanin oxygen transportation is more efficient than hemoglobin oxygen transportation.Created by: Kasiablood facts » Which animals are the most threatened by a prion disease?Sheep. Scrapie is infectious and incurable. Recent studies suggest prions may be spread through urine and persist in the environment for decades. Scrapie occurs in Europe and North America, but to date, Australia and New Zealand (both major sheep-producing countries) are scrapie-free.Created by: ex-terminatordiseases facts » On which continent you may find dromedary camels in the wild?In Australia. The domesticated form occurs widely in North Africa, South Asia and the Middle East, but the only population in the wild is in Australia. Dromedary camels were brought over by the early colonizers as pack animals. They became redundant with the arrival of motor transport, and today's feral herds are their ascendants.Created by: globalquiz.organimals of Australia facts » Which dogs are known to eat fish?Dingos ancestors that were brought to Australia were relatively undomesticated and closer to wild Asian gray wolf. The dingo's diet includes bandicoots, rodents, echidnas, crabs, fruits, and other plants, as well as insects (mostly beetles). On Fraser Island, dignos often eat fish.Created by: globalquiz.orgcarnivores facts » Why do cats have vertical pupils?To better see in the dark. The sharpest image is produced by round pupils, and if cats weren’t nocturnal, they probably would have round pupils like us. But the vertical pupil, in combination with horizontal eyelids, gives the cat greater and more accurate control in different types of lighting. A cat may adjust the amount of light by moving eyelids only.Created by: globalquiz.orgoptics facts » 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.Created by: Cleomammals facts » Mules are generally known to have fertility problem. How often do mules give birth to a healthy offspring?Very rarely. Mules are considered infertile, but there have been more than 60 documented cases of foals born to female mules around the world (some of them were even DNA-tested to verify the motherhood). There are no recorded cases of fertile mule stallions.Created by: globalquiz.orghorses facts » Which living creature has the largest eyes?The giant squid. Giant squids have the largest eyes of any living creature except perhaps colossal squid – over 30 centimeters (1 ft) in diameter. Large eyes can better detect light (including bioluminescent light), which is scarce in deep water.Created by: Kasiaeyes facts » Which dogs have blue eyes?Siberian Husky. Siberian Huskies are known for blue eyes. They commonly have one more unusual trait called heterochromia - a difference in iris coloration between the left and the right eye.Created by: Kasiadogs facts » Play zoology quiz and see all the questions.