Mystery of the seadragon solved

The genome of the seadragon, a very unusual fish, has been decoded. Seadragons (Phyllopetryx taeniolatus) live off the coast in western and southern Australia. Evolutionary biologists have now found the genetic basis for some external characteristics of the seadragon, like its lack of teeth and its distinct leaf-like appendages. The team also localized the sex-determination gene in the seadragon genome.