Of the few fossils of monorentes found so far, the 15-million-year-old platypus skull fossil found in Australia is one of them, and the fossil record shows that monoporans originated at least 10 million years ago, when Australia was part of the Gondwana ancient land.
platypus
Platypus is an unusual amphibian mammal, with a soft beak, hind fur and claws, a body length of about 40 cm, mostly solitary, common in eastern Australia, Tasmania, Kangaroo Island and Kings Island.
The platypus is also a master of water hunting, it will close its eyes and ears when diving, and then turn to its soft beak, which not only has a keen sense of touch, but also detects the various signals released by invertebrates that lurk under the water, and then preys.
After the spring platypus mating, the female platypus lays about three eggs alone in the shore cave, hatches the eggs alone, and the hatched cubs and the mother platypus spend three or four months in the cave, during which they rely on the milk secreted by the mother platypus to maintain life, the cubs can move freely, they will gradually wean, and then leave the mother's nest, and then live alone, there are records showing that the lifespan of wild platypus is at least 15 years.
platypus