Coelacanths existed as long as 370 million years ago, and it was long believed that they were extinct. But in 1938 a fisherman netted one in the Indian Ocean. Over the years more of these rare fish were captured and studied. The German biologists analyzed blood proteins from live coelacanths. They found that these proteins are like the blood proteins of frogs- the earliest land animals. Scientists consider the structure of proteins to be an important clue to relationships among animals: the more alike the proteins, the closer the kinship. Despite the new evidence linking coelacanths and amphibians, many more studies must be done to determine if coelacanths really are our water-dwelling ancestors. (Adapted from Grolier Book of Knowledge Encyclopedia)
"...look into all things with a searching eye” - Baha'u'llah (Prophet Founder of the Baha'i Faith)
Pages
Jan 11, 2013
Our Fishy Family Tree?
Coelacanths existed as long as 370 million years ago, and it was long believed that they were extinct. But in 1938 a fisherman netted one in the Indian Ocean. Over the years more of these rare fish were captured and studied. The German biologists analyzed blood proteins from live coelacanths. They found that these proteins are like the blood proteins of frogs- the earliest land animals. Scientists consider the structure of proteins to be an important clue to relationships among animals: the more alike the proteins, the closer the kinship. Despite the new evidence linking coelacanths and amphibians, many more studies must be done to determine if coelacanths really are our water-dwelling ancestors. (Adapted from Grolier Book of Knowledge Encyclopedia)