Modern whales have smooth skin and streamlined body shapes. Their huge tails cre···
During the period starting from the Eocene and continuing to the Oligocene, the ···
The earliest true beasts were insectivores (order) that appeared in the Cretaceo···
Almost at the same time as the origin of marsupials, another more progressive ma···
The only order in the subclass Metatheria is the Marsupial order. It has experie···
After experiencing the catastrophe at the end of the Mesozoic Era until modern t···
We already know that the tragic mass extinction of the dinosaurs marked the end ···
A large number of primitive mammal fossil skeletons discovered in the Triassic s···
As early as the late Triassic, when dinosaurs had just entered the evolutionary ···
Frogs, toads and salamanders are familiar amphibians. They are still active in p···
Most conchovertebrates are small amphibians, adapted to life in shallow water an···
Labyrinths are the earliest terrestrial vertebrates to appear on earth. They flo···
The origin of amphibians probably occurred in the late Devonian period. At that ···
At the end of the Devonian period, a certain kind of lobe-finned fish ventured o···
We Chinese have long known that turtles are long-lived animals, so there has bee···
For a long time, the scientific community has believed that lobe-finned fishes, ···
Because lungfish have lungs and internal nostrils that can breathe air, they hav···
The earliest representative of lobe-finned fish is the skeletal fish of the midd···
The earliest representative of lungfish is the bifin fish of the middle Devonian···
During the Devonian period, the earliest lobe-finned fishes appeared and differe···
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