European scientists first discovered the platypus due to its unique fur and anatomy. A sketch sent from Australia in 1798 left them in disbelief.

This specimen was so extraordinary that British zoologist George Shaw initially deemed it impossible, stating there was no reason to doubt its authenticity.

Could a prankster have stitched a duck’s beak onto a beaver’s body? To verify, Shaw meticulously examined the specimen for seams, but none were found. Thus, he became the first person to officially describe the animal, naming it platypus anatinus, originally referred to as “duck-like flat feet.” Over time, the classification evolved to Ornithorhynchus anatinus, meaning “duck-billed platypus.”

The platypus resembles a whimsical creation from a children’s book, combining features from various animals. It has a duck’s beak, an otter’s body, and a beaver’s tail. Notably, it lays eggs like birds while nursing its young with milk, a trait shared with mammals.

After extensive research and debate, scientists classified the platypus as a primitive type of mammal known as monotremes.

The term “monotreme” comes from the Greek word for “single opening,” referring to a multifunctional orifice, or “cloaca,” utilized for excretion, reproduction, and laying eggs.

The platypus is among five living monotreme species, along with four echidna species, all of which lay eggs instead of giving live birth.

The female platypus lays two small, leathery eggs in a breeding burrow, typically surrounded by grass. After around ten days, the platypus hatchlings, known as “

About the size of a butterbean, these hatchlings are born blind and hairless, making them entirely dependent on their mother.

For the next four months, she nourishes them with rich, nutritious milk that she secretes through special pores on her hairless abdomen, which they lap up from her fur.

Furthermore, the platypus’ beak is equipped with special receptor cells that detect electric signals generated by prey movements, including crustaceans and insect larvae.

Untypically for mammals, the platypus is also venomous. Males utilize their hollow spurs to inject venom into rivals to attract female attention.

In terms of swimming style, platypuses differ from river otters, which use all four legs for propulsion or beavers that use their hind legs and tail. Instead, platypuses swim by paddling solely with their front feet, using their tails and webbed hind legs primarily for steering.

If that wasn’t strange enough, consider the platypus genome.

Unlike most mammals that have two sex chromosomes, the platypus has ten, along with genes typical of mammals, genes from reptiles, and some entirely unique genes.

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