Protect the ocean’s oldest marine species. These fascinating marine species have been on the planet for millions of years, but sadly many of them are now at risk of extinction. Factors such as overfishing, illegal trade, and habitat loss mean we could lose these ancient creatures forever.

2023年8月31日 · One of the oldest groups of animals to have evolved into complex forms, fish have been around for hundreds of millions of years. They were some of the first vertebrates to roam the oceans and successfully occupy inland areas via estuaries, rivers, and streams.

Despite its name, the elephant shark is not actually a shark, but a type of cartilaginous fish. It belongs to a group of fish called ratfish, which diverged from sharks about 400 million years ago. They are believed to be one of the oldest known vertebrate species.

Here we list 9 of the oldest surviving sea animals that still exist. 9. Sturgeon. photo source: britannica.com. The name Sturgeon describes 29 species of fish of the Acipenseridae family. Many of these species are considered critically endangered.

2010年5月14日 · Gars are among the oldest fish alive today; their origins can be traced back to the Cretaceous period. These african fish are often called “dinosaur eels”, due to their reptilian appearance and serrated dorsal fin, reminiscent of some dinosaurs’ spiked backs. They are not really eels, but members of the bichir family.

The oldest identified coelacanth fossils are around 420–410 million years old, dating to the early Devonian. [ 1 ] [ 48 ] Coelacanths were never a diverse group in comparison to other groups of fish, and reached a peak diversity during the Early Triassic (252–247 million years ago), [ 49 ] coinciding with a burst of diversification between ...

Prehistoric fish are early fish that are known only from fossil records. They are the earliest known vertebrates, and include the first and extinct fish that lived through the Cambrian to the Quaternary. The study of prehistoric fish is called paleoichthyology.

2021年12月11日 · The oldest fish in the world is the Greenland shark, with a 392-year-old female specimen being the oldest ever discovered. With a lifespan of at least 272 years, Greenland sharks are now the longest-living vertebrates known on Earth, according to scientists.

Are the world’s oldest fish in the ocean or in freshwater? Do deep water fish have longer lifespans than fish that swim near the surface? Read on to learn more about 12 fish species that can potentially live for up to 500 years!

2014年6月11日 · The first fossil fishes are known from scant and often ambiguous fossil remains, and research published today in Nature gives us the first clear picture of exactly what these earliest fishes were...