Animals

Monday, 28 September 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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Snails
Snails can reproduce sexually and hermaphroditic.
Most sea snails have two sexes and land snails are hermaphroditic. Marine species lay externally fer ...
Housefly
Flies as biological weapons were used during World War II.
The Japanese, under the leadership of Shirō Ishii, worked on entomological warfare techniques. They ...
Jellyfish
The smallest known jellyfish come from genera Eleutheria and Staurocladia.
They typically measure up to 0,5 millimeters in diameter.
Jellyfish
They are composed of 98% of water.
Jellyfish washed ashore will evaporate in several hours.
Quokkas
Male quokkas fight for dominance and form a hierarchy.
It is the largest and heaviest of males that always gets the best shady spot to rest during the day, and has more access to females.
Sea lamprey
Morphed juvenile lampreys migrate to lakes or saltwater environments.
At this time, they begin to feed on their victims' blood. It is estimated that a single sea lamprey is capable of killing 18 kg (40 lb) of fish annually.
Adelie penguin
Until the early 20th century, Adelie penguins were consumed by humans.
They were also used as a bait or for oil.
Spinosaurus
We are still unsure what was the role of its sail.
It might be useful to body heat regulation or make the animal more intimidating to opponents as it enlarged it optically a lot.
Black-headed python
They are terrestrial snakes, which seek shelter in self-dug or abandoned burrows.
They spend most of the day hidden in a burrow, sticking their heads out to warm their bodies. They may also use burrows to cool their bodies.
Wolf spider
Most of wolf spider species are not endangered.
Endangered are those adapted to single habitats like Desertas wolf spider that lives only in one sin ...