Animals

Monday, 23 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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Common kingfisher
Common kingfishers' nests are tunnels drilled into the slopes of rivers or the banks of ponds.
Both males and females dig the burrow with their beaks. The tunnel can be up to six centimeters wide ...
Sea lamprey
The spawned larvae find cover in the sand and mud, where they stay for three to four years, feeding on detritus and microalgae.
Lamprey's larvae (ammocoete) spend a few years in fresh bodies of water until they undergo metamorphosis.
Clownfish
The average lifespan of clownfish is about 10 to 13 years in the wild.
But there are species living substantially longer like Amphiprion percula, which can live in captivity up to 30 years.
Common cuckoo
A peculiarity of the cuckoo is its brood parasitism. They lay eggs in the nests of other birds.
The Common Cuckoo has a habit of laying its eggs in other species nests, so an unsuspecting female h ...
Hippopotamus
The culling of Escobar's hippos was considered but was opposed by the public.
Enrique Zerda Ordonez, a National University of Colombia biologist, believes that neutering these an ...
Southern cassowary
They live up to 30 years in the wild.
They reach maturity in 2,5 to 3 years. In captivity, cassowary can live up to 50 years.
Moose
The moose's head is large and elongated, ending with a wide muzzle.
Its upper lip is wide, elongated, mobile, and fleshy - it serves as a gripper. The sloping nostrils ...
Brazilian wandering spiders
Approximately four thousand people a year are bitten by the Brazilian cottonmouth.
Only 0.5 percent of those bitten suffer serious health complications from it. Mortality is even rare ...
Yellow spotted lizard
There are four subspecies of yellow-spotted tropical lizards.
Lepidophyma flavimaculatum flavimaculatum, Lepidophyma flavimaculatum ophiophthalmum, Lepidophyma flavimaculatum tehuanae, Lepidophyma flavimaculatum tenebrarum.
Jellyfish
Jellyfish are extremely well adjusted to climate changes and water pollution.
Combining it with their rapid reproduction, their numbers grow at a very high rate.