Animal Encyclopedia Guides-Comprehensive Animal Science Guides - Animals Top 10

Ancestor types of humans and mammals

A large number of primitive mammal fossil skeletons discovered in the Triassic strata of South Wales, England, are repre···

Origins and Characteristics of Mammals

As early as the late Triassic, when dinosaurs had just entered the evolutionary stage, a group of small animals that wer···

Specialized characteristics of armorless amphibians

Frogs, toads and salamanders are familiar amphibians. They are still active in ponds, rice fields, swamps, streams, rive···

Introduction to shell-vertebrate amphibians

Most conchovertebrates are small amphibians, adapted to life in shallow water and swamps. They first appeared in the Ear···

The earliest amphibians on earth (labyrinths)

Labyrinths are the earliest terrestrial vertebrates to appear on earth. They flourished in the Carboniferous and Permian···

The origin and evolution of amphibians

The origin of amphibians probably occurred in the late Devonian period. At that time, a certain species of lobe-finned f···

Basic structure of amphibians

At the end of the Devonian period, a certain kind of lobe-finned fish ventured out of the water and climbed onto land, b···

The origin and evolution history of turtles (long-lived animals)

We Chinese have long known that turtles are long-lived animals, so there has been a proverb from ancient times: "A thous···

The story of the living fossil Latimei fish

For a long time, the scientific community has believed that lobe-finned fishes, including coelacanths, were extinct from···

Who are the ancestors of four-legged vertebrates?

Because lungfish have lungs and internal nostrils that can breathe air, they have long been considered the earliest terr···

The evolution of lobe-finned fishes

The earliest representative of lobe-finned fish is the skeletal fish of the middle Devonian period. From it, we can actu···

Characteristics and evolution of lungfish

The earliest representative of lungfish is the bifin fish of the middle Devonian period. On this basis, lungfishes were ···

air breathing fish

During the Devonian period, the earliest lobe-finned fishes appeared and differentiated into two major categories: lungf···

The relationship between reptiles (reptile family tree)

We already know that based on the development of the temporal part of the skull, that is, the relationship between the d···

Salamanders and the Origin of Reptiles

There is a city called Seymour in Texas, USA. A large area of early Permian sediments is exposed in the north of the cit···

The evolution and characteristics of reptiles

Reptiles are the earliest amniotes to appear on earth. They evolved from labyrinths among amphibians. The transition fro···

Wave-like evolution of ray-finned fishes

Actin-finned fishes are the most successful aquatic group of all vertebrates, occupying almost all ecological niches in ···

The evolutionary path of primitive bony fishes (real conquerors of waters)

In the middle Devonian period, some more advanced bony fishes appeared. Part or all of their bones ossify into hard bone···

Structure of the Gap Shark (Ancient Ocean Killer)

The sharks we are familiar with are cartilaginous fishes. Nearly all cartilaginous fishes are marine animals. Throughout···

The story of a high-class fish riding and shooting in Hufu

Life originated in the primitive ocean, and the earliest vertebrates were also born in the waters. Both armored fish and···

The evolution of the most primitive placoderm fish

The most primitive gnathostomes discovered so far are placoderms (class). They first appeared in the late Silurian Perio···

The most primitive bony fish - acanthus

As early as the late Silurian period when placoderms just appeared, the most primitive bony fishes, the acanthus, also q···

The first revolution in the history of biological evolution (the origin of the jaw)

In the history of biological evolution, some major events have occurred. The significance of these major events exceeds ···

Lamprey’s appearance characteristics and living habits

Lampreys look very much like ordinary eels. They have a slender body with exposed skin without scales. There is a long d···