Animals

Tuesday, 10 March 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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Northern pike
They are predatory and often hunt from concealment.
Pike (especially the smaller ones) hide in the lush thickets of water bodies and wait for incoming p ...
Aye-aye
Their natural predator is a fossa, a cat-like mammal endemic to Madagascar.
A fossa is the largest predatory mammal living in Madagascar.
Gila monster
Its name derives from the Gila River basin in Arizona.
It was where they were first discovered in the 1800s.
Dik-dik
Male dik-diks have small horns.
They measure about 8 cm, are longitudinally striated, and slant backward. Sometimes the horns are partially covered by hair that forms a vertical tuft on the top of the head.
Otters
They primarily feed on fish, but also on crabs, crayfish, and frogs.
Depending on the species, they can also feed on small birds and mammals, shellfish, clams, and sea urchins.
Mallard
It is a highly adaptable species, capable of living even in urban areas.
In some regions of the world, it is considered an invasive species, capable of displacing more vulnerable species of waterfowl.
Pink river dolphin
Young stay with females for up to two years, until it matures fully.
Housefly
Flies have a liquid diet adapted mouthparts.
It is used to ingest liquids and the solid fraction previously dissolved with saliva.
Adder
It is most common in cooler places like forest clearing, wet meadows, or forest edges.
Earthworms
Earthworms that are not frost-tolerant die at around -2 °C.
Spring frosts can decimate earthworm populations in a very short time.