In ancient times, there was another group of species living on the earth, huge dinosaurs, pterodactyls, pterosaurs that hovered in the sky, sea, land and air once had their figures, and now the fossils left behind silently tell human beings that they once lived on the earth.
Whenever this happens, we are amazed by the power of nature and curious about these species, are all ancient creatures extinct? Are there any surviving species? The answer is yes, these species have survived by "eating" until now, have not evolved from ancient times to the present, and are living fossil creatures on earth.
There is a kind of bug, crawling slowly in the wet ground of the forest, looking a little like a creature on earth, the bright colors on the body seem to be issuing a warning, I am not good, this bug is going to eat meat, this speed of hunting is a bit choking, the distant prey appears, it stops, suddenly, it begins to feed the prey, the sides of the head spew out a viscous liquid, it turned out to be its digestive juice, it was trapped by the prey drenched in a viscous liquid, it crawled over unhurriedly, it had sharp jaw teeth in its mouth, Easily bite through the exoskeletons of prey and enjoy a delicious meal with ease.
This insect is the velvet worm, the ancestor of the velvet worm appeared as early as the Cambrian period, 530 million years ago, they have no change in appearance and form, is a veritable living fossil. Velvet worms are ctenophores, with many fat feet, these fat soles have hook claws, these small claws are controlled by muscles, stretch freely, can climb all kinds of rough ground, so it is a clawed invertebrate.
Judging from the fossil restorations unearthed in modern times, the velvet worm seems to have crossed directly from the Cambrian Period, but it moved from the sea to the land and successfully adapted to land life.
Deep in the sea, there is a very beautiful looking snail, swimming and swimming will constantly hit the stones, corals, and its relatives octopus, this stupid creature is the famous Nautilus, it is another living fossil from ancient times.
The Nautilus has a lot of tentacles like an octopus, these tentacles can swim in the sea in addition to predation, it relies on these tentacles to squeeze the water forward, using the principle of jet engines, but the problem comes, when they are moving fast, the snail shell is in front, the eyes can't see the road ahead, so when pushing themselves forward, it's like people are walking backwards, so there is the opening scene, there will often be many collisions, do you think it will only walk backwards? In fact, when it walks slowly, it can be reversed and walking, but it will still hit the wall, which is so stupid.
People studied the nautilus diving method, got inspiration, and the first human submarine "Nautilus" was successfully developed. The ancestors of the Nautilus lived in the Ordovician period 500 million years ago, they were the top predators of that era, during the mass extinction of species, the demise of large Nautilus populations, small curly-shell nautiluses survived, and constantly adapted to changes in the environment, becoming modern precious living fossils.
This animal is very peculiar, with a flattened duck's beak, four small short legs with the same paws as ducks, the body is like an otter, obviously laying eggs, but with milk to raise offspring, it is a living fossil platypus, has existed on the earth for 25 million years, platypus is a unique species in Australia, it integrates the genes of mammals, birds, reptiles, because of the fusion of the genes of these three species, it also has the characteristics of these three types of species.
When the platypus was first discovered, British scholars could not believe that the specimen was real, they believed that the specimen was spliced together from the specimens of otters and ducks, which shows how subversive this little monster is to the cognition of scientists. The platypus is very good at swimming, so it inhabits the vicinity of rivers, it is also meat-eating, and is very good at preying on rivers, and when diving into the bottom of the river, it looks very cute, paddling with 2 front feet, and the back feet and tail are used to control the direction. Male platypus have a stinger on their hind feet, but females do not, and males fight for territory, at which time they can stab each other with a hidden weapon and release venom.
After the Australian forest fire, the ecological environment suffered great damage, but also made the living fossil platypus on the verge of extinction, from ancient times, the platypus, after many tribulations to the modern era, hope that it can survive this disaster, still live on this planet.