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Latest Chondrichthyes Stories

Elephant Shark DNA Decoded
2014-01-08 15:35:28

Scientists have deciphered the genetic blueprint of the elephant shark - the oldest living animal in the cartilaginous fish family and the first to have its DNA decoded.

Shark Brains Are Similar To Our Own
2012-10-31 12:58:10

New research indicates that the infamous shark from the movie Jaws may have more in common with police chief Martin Brody than previously thought.

2011-12-15 17:05:11

Biologists have long assumed that all jawed vertebrates possess a full complement of nearly identical genes for critical aspects of their development.

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2009-09-22 09:15:00

Ancient and bizarre fish named by California Academy of Sciences researchers.

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2009-03-24 07:45:00

The genetic toolkit that animals use to build fins and limbs is the same genetic toolkit that controls the development of part of the gill skeleton in sharks.


Latest Chondrichthyes Reference Libraries

Cownose Ray, Rhinoptera Bonasus
2012-12-29 10:52:00

The cownose ray is found in the western Atlantic from the coast of Maine to southern Brazil. In the fall schools of 10,000 or more will migrate south to the warmer water of Yucatan, Mexico. The cownose ray is a bottom dweller at depths of up to 70 feet, in brackish (salty) water. As a territorial act the cownose will leap out of the water and land with a loud smack. An adult cownose has a brown body with a yellowish white belly, has an average wingspan of 45 inches and can weigh 50 lbs,...

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2007-04-19 10:29:30

The Bramble shark, Echinorhinus brucus, is covered with large, thorn-like denticles, and hence the name "bramble" shark. Physical characteristics Bramble sharks have a long cylindrical body covered with large protruding denticles, no anal fin, two small dorsal fins placed far on the back just before the tail, and five pairs of gill slits. They can reach a maximum length of 10 ft (3.1 m). Distribution The bramble shark is found in the Western Atlantic from Georgia to Maine,...

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2007-04-13 19:56:36

The Kitefin shark, Seal shark, or Black shark, Dalatias licha, is a dogfish, the only species in the genus Dalatias, found in the Atlantic, western Mediterranean, western Indian Ocean, and western Pacific including Japan, Australia, Hawaii, and New Zealand, at depths of 164.04 to 5905.51 ft (50 to 1,800 meters). Its length is from 3.28 to 5.91 ft (1 to 1.8 meters). The Kitefin shark has a blunt snout and both dorsal fins are approximately equal in size. The trailing edges of all fins are...

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2007-03-26 14:08:56

The Frilled shark, Chlamydoselachus anguineus, is a primitive shark species, of the family Chlamydoselachidae in the order Hexanchiformes. The Southern African frilled shark is a proposed new species from the Southern African range. These two species are very different from the other hexanchiform sharks, and it has recently been proposed that the two frilled sharks should be given their own order: Chlamydoselachiformes. Additional extinct types are known from fossil teeth; thought to be...

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Word of the Day
donative
  • A gift; a largess; a gratuity; a present; a dole.
The word 'donative' comes from a Latin word meaning 'to give'.
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