Animals

Saturday, 31 January 2026
27 facts about turtles
27 facts about turtles
The only vertebrates so armored
The first turtles appeared on Earth at the end of the Permian about 240 million years ago. Although the first ones had neither plastron nor carapace, ...

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Brittle stars
Some species, however, are hermaphroditic or protandric.
Protandric animals produce male and female gametes at different times. Hermaphroditism is the occurr ...
Viper dogfish
To catch their prey, viper dogfish extend their jaws.
There are some who claim the process reminds them of xenomorphs. However, since the first individual ...
Amur leopard
Amur leopards reach sexual maturity at the age of 3.
European pine marten
The marten's gestation period can last up to 9 months, with fetal development occurring mostly in the second half.
Between 2 and 7 young (4 on average) are born per litter. The average weight of a newborn marten is ...
Narwhal
Narwhal, like all whales, cannot breathe under water.
Housefly
They are the prey of many animals.
They constitute a significant meal for birds, reptiles, amphibians, spiders, and other insects. In t ...
Housefly
Flies have a liquid diet adapted mouthparts.
It is used to ingest liquids and the solid fraction previously dissolved with saliva.
Alpaca
Alpacas have the splitted upper lip characteristic of camelids and continuously growing teeth that must be trimmed.
Alpacas that feed on silica-rich plants partially wear down their teeth.
Capybaras
The great capybara is the largest rodent living on Earth.
Capybaras belong to the family Caviidae, so they are cousins of, among others, the domestic cavy, mo ...
Dolphins
Dolphins are very intelligent and playful.
Their intellect is equal to that of monkeys and their brain structure is very similar to that of humans.