questionedithistorytranslationsWhat animal is that?pig155wild boar1127babirusa1365warthog11232The common warthog is the only pig species that has adapted to grazing and savanna habitats.Share and bring new players to the game!correct this questionglobalquiz.orgreach: rather globalanimalsmammalsnaturepigszoologyIllustration: wwarbyMammals quizZoology quizAnimals quizNature quizHow 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.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.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.What animal is that?Cassowary. Cassowaries have have horn-like but soft and casques on their heads, up to 18 cm long (7 in). The role of cansques is uncertain. The simplest theory is that they protect the skull from collisions, when the birds lower their heads when running. It could be, however, that the casques help to cool blood, protect from falling fruits or amplify low sounds made by cassowaries.