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Thus, these nerve cells have a length of nearly 5 m (16 ft) in the largest giraffes. [77] Despite its long neck and large skull, the brain of the giraffe is typical for an ungulate. [79] Evaporative heat loss in the nasal passages keep the giraffe's brain cool. [53] The shape of the skeleton gives the giraffe a small lung volume relative to its ...
Known as “necking” the giraffes use their long and powerful necks to attack, delivering hard blows with each hit. As you watch the video, you can hear the loud whacks coming from the neck ...
A Penn State researcher has been trying to get to the bottom of the age-old question of why giraffes have long necks. Focus on research: Female giraffes drove the evolution of long necks, new ...
Parasitoid use of viruses: parasitoid wasps lay their eggs inside host caterpillars; to keep the caterpillar's immune system from killing the egg, a virus is also "laid" with the eggs. Two unrelated wasps use this trick. [153] Short-lived breeders: species that are in the juvenile phase for most of their lives.
Masai giraffes can suffer from giraffe skin disease, which is a disorder of unknown etiology that causes lesion on the forelimbs. This disorder is being further investigated to better understand mortality in this species.
Elephants can use their ears as threat displays in male-to-male competition. Sexual selection in mammals is a process the study of which started with Charles Darwin's observations concerning sexual selection, including sexual selection in humans, and in other mammals, [1] consisting of male–male competition and mate choice that mold the development of future phenotypes in a population for a ...
They also will 'swat' with their extremely long and strong necks. Male giraffes become aggressive during mating season. If giraffes sense that their babies (calves) are in danger, they will attack ...
A mineral lick (also known as a salt lick) is a place where animals can go to lick essential mineral nutrients from a deposit of salts and other minerals. Mineral licks can be naturally occurring or artificial (such as blocks of salt that farmers place in pastures for livestock to lick).