Animals

Monday, 19 October 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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Black-headed python
Their black-colored heads play an important role in thermoregulation.
As an ectothermic animal, pythons need to bask in the sun to warm their bodies. Black head allows them to absorb sun energy quicker.
Hawksbill sea turtle
Females chose the same place they hatched as their nesting grounds.
They dig a hole with claws on their flippers and lay an average of 140 eggs, which then they cover with sand and leaves. After the process is done, females return to the ocean, leaving eggs behind.
Sea lamprey
Sea lampreys can be found deep under the sea.
Specimens of the sea lamprey have been recorded at depths of 4000 m (2,5 mi).
Central bearded dragon
Young females with ZZ chromosomes resemble males, but as they grow up, they become similar to females with ZW chromosomes.
Their head is not as massive as that of males and they do not have such a strong jaw grip.
Tasmanian devil
Sometimes adult devils eat younger representatives of their species.
Usually, acts of cannibalism occur when food is scarce. Probably for this reason, juveniles have evolved the ability to climb trees and shrubs, which they lose with age.
Leeches
Leeches are found in inland freshwaters as well as in marine waters on all continents except Antarctica.
They can live in freshwater, brackish water, saltwater, and on land. Leeches prefer shallow, still, ...
Black Caiman
Black caimans reach sexual maturity at the age of 5 to 15.
Lemon shark
One female breed once a year.
The gestation lasts for 12 months, and after the female gives birth, she takes a year-long break between the litters.
Luna moth
Each instar of larvae stage is green.
Caterpillars stay at the same tree they hatched. Trees are not harmed in any significant way as the moth population is not large enough.
American mink
Outside the mating season, minks lead a solitary lifestyle and react with aggression towards members of their own species.
They are quiet animals that rarely make sounds.