Animals

 In captivity, toco toucans live shorter lives, about 18 years, and often suffer from hemochromatosis (a disorder of iron metabolism).

The newly hatched birds are aggressive and push apart, causing other eggs or even hatched chicks to be thrown from the nest and die on the ground.

They lack adhesive lamellae – plate-like structures – on their toes, which are quite common for other gecko species. Instead, their toes end up with claws.

Its saliva can often be tinged with blood, as the teeth are almost completely covered by gum tissue, ...

Some crustaceans have a head torso and abdomen, but there are some in which it is impossible to distinguish these elements. In this case, the structure of their body is divided into head and body.

Most attacks are caused by humans accidentally stepping on them and are not lethal. There have been ...