Animals

Saturday, 21 February 2026
15 facts about fleas
15 facts about fleas
External parasites
Fleas are one of the most hated insects by pet owners. Once they find their way onto a dog or a cat, they are very hard to remove. Reproducing at a ve ...

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Octopus
The protein hemocyanin is responsible for the blue color of octopus blood.
Maine coon
There are 75 color and pattern variations of Maine coons.
Narwhal
Narwals are communicating thanks to echolocation.
Zebra mussel
They originated from the Caspian Sea and the Black sea region.
In the 19th century, it was introduced to Europe made its way to North America in the 1980s.
American mink
The American mink is a species of a predatory mammal from the mustelid family.
Mustelids and martens (Mustelidae) are the most numerous family of predatory mammals, including smal ...
Alligator snapping turtle
Its jaws have a bite force of approximately 455 kg, so can easily go through bones.
It is crucial to handle them with care, since a careless encounter may result in amputation.
Spotted hyena
Although rare, spotted hyenas can attack humans.
Like most predators, they stay away from humans, maintaining a distance of about 300 meters. However ...
Sperm whale
Sperm whales play a key role in the marine ecosystem.
They are nicknamed “marine ecosystem engineers.” When they surface, they excrete nutrient-rich faces ...
Narwhal
Narwhals can swim underwater with one breath for about 25 minutes.
Fleas
Fleas prefer high-humidity environments.
They are adjusted to temperature fluctuation of 21 to 30 degrees Celsius, and the humidity of no less than 70%.