In a fascinating revelation, scientists studying the coelacanth, a fish once thought extinct by the dinosaurs but rediscovered alive in 1938, have unveiled surprising aspects of its life.
Contrary to earlier beliefs, these deeр-sea dwellers boast a lifespan approximately five times longer than previously thought, living up to a century. The study, focusing on one of the two living species of coelacanth, also revealed that females carry their young for an unprecedented five years, the longest-known ɡeѕtаtіoп period of any animal.
This elusive fish, residing at ocean depths of up to half a mile, has become a subject of scientific intrigue. The researchers employed an innovative approach, examining annual growth rings on the fish’s scales, akin to reading tree rings, to determine its age. The study indicated a notably slow development and growth pace, with the coelacanth reaching sexual maturity around the age of 55.
Coelacanths, considered “living fossils,” first appeared around 400 million years ago. Previously believed extinct since the Cretaceous Period, they were rediscovered off the coast of South Africa. The term “living fossil” is now contested, with scientists emphasizing the coelacanth’s evolutionary changes. This study opens a window into the unique life history of the coelacanth, challenging earlier misconceptions. The findings highlight its late sexual maturity, extended ɡeѕtаtіoп period, and slow growth, making it one of the slowest among fish.
With only two extant species, both endangered, the coelacanth’s sensitivity to environmental disturbances underscores the importance of conservation efforts to preserve this extraordinary deeр-sea creature.