At home and abroad, especially in areas where earthquakes have occurred, after heavy downpours in summer, in ponds, puddles, and temporary lakes formed, there will be strange "prehistoric creatures" from tiny eggs Appeared in, swimming around in the water.
After the temporary pond dries up, they die horribly.
These tadpole-sized biological names are called "hòu", their foreign name Triops means "three eyes" in Greek . Due to its long evolutionary history, it is sometimes called "dinosaur shrimp" or " three-eyed dinosaur shrimp ". Various places in the country have different names for it.
These crustaceans evolved from their ancestors from the Devonian period (419 million to 359 million years ago), and their appearance has changed little since then. (It is worth noting that dinosaurs only appeared during the Triassic period about 252 million years ago.)
If you search on the Internet, most of the information and popular science content will tell you The three-eyed dinosaur shrimp is a "living fossil", or "prehistoric creature". But in fact, the three-eyed dinosaur shrimps are not exactly the same as their ancestors. They should not be regarded as "living fossils". To say this will cause the public to misunderstand that they have not changed at all. But they have changed, they have evolved. It's just that the appearance is very similar to that of millions of years ago.
Three-eyed dinosaur shrimp males and females are usually paired by sexual reproduction, but if they are scarce, they have other ways: these crustaceans are hermaphrodite, which means they have both male and female sex organs , Can also be parthenogenetic, which means that offspring can be reproduced directly from unfertilized eggs.
Their eggs can dormant in the desert for decades, until there is enough rainfall to form a lake, providing "real estate" and time for the maturation of hatched larvae and the next generation of spawning.
After hatching, the three-eyed dinosaur shrimp can grow up to 4 cm long and has a shield-shaped shell that looks like a miniature helmet. Their eyes make them look angry and smart-they have two large black frames compound eyes (like the compound eyes of a dragonfly or a bee) and a "third eye", a photosensitive eye on the top of the skull. Speaking of it, the "third eye" is actually not uncommon in the animal world. Most lizards, bullfrogs, chameleons, and sharks have a third eye, which is usually used to sense light.
Can these weird three-eyed dinosaur shrimp eat? In theory, there should be no problem. When the three-eyed dinosaur shrimp appears, birds will always notice almost immediately, and birds such as crows will swoop into the water and devour these creatures.
In this Internet age, the three-eyed dinosaur shrimp has been kept as pets in China, Japan, the United States and other places. The merchants sell the long-term dormant eggs of the three-eyed dinosaur shrimp, which will hatch after exposure to fresh water. Life expectancy Up to 90 days.
Species daily update: write some furry (or not so furry) animals or weird plants every day. The content may be a little bit popular, but it is relatively rigorous. We believe that facts are usually more unexpected and interesting than barren imaginations. hope that you who love animals and life, follow us , share the joys and challenges of the animal world with each other.
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