Why Sharks Have No Bones
13 Jan 2014
Geneticists Wednesday said they had sequenced the genome of the elephant shark — revealing much about the evolution of vertebrates.
The shark, which uses its elongated snout to ferret out shellfish buried in the sand under the deep waters off of New Zealand and southern Australia, is almost unchanged since it first hit the scene on earth almost half a billion years ago.
The sequencing has yielded exciting clues about the development of the immune system in all of us, and even answering the question of why sharks have no bones.