Animals

Wednesday, 22 April 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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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.
Tigers
In nature, the gene conditioning white fur occurs in one in ten thousand specimens.
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 ...
Northern pike
They are territorial and aggressive.
Aggression within the species is common and is caused by fighting for space and food. It happens that larger individuals steal prey from younger pikes.
Red-necked wallaby
They are mainly solitary animals.
In times of food and water scarcity, they join together in mobs. Mobs consist of up to 30 individuals.
Octopus
Octopuses have the so-called siphon, i.e. the organ responsible for gas exchange, removal of metabolic waste, and secretion of ink.
Turtles
The most important sense in turtles is vision.
Their eye has rods adapted to both low-light conditions and cones that allow them to see in the full ...
Leeches
Pliny the Elder wrote that leeches suck blood and are helpful for "rheumatic pains and all kinds of ailments and fevers."
In June 2004, the US Food and Drug Administration approved leeches for medical use, recognizing them as a therapeutic agent.
Blue-Tongued Lizard
They can grow up to 60 cm long. 
They weigh about 1 kg (2,2 lb.).Their body is stocky, cylindrical, with a triangular head wider than ...
Laughing kookaburra
They are territorial, marking their territory by singing as a chorus.