|
Home / News / Tags / parthenogenesis
|
|
Stories about: parthenogenesis |
|
|
Female Komodo dragons do not need stem cell technology and genetic engineering to do it. They really can skip the male chapter in the case of breeding. Two Komodo dragons have hatched at the Sedgwick County Zoo, Wichita, Kansas, without the contribution of a male. These are the first dragons born by parthenogenesis i... |
11 February 2008
02:49 GMT |
 |
|
There are more and more mysteries about the sharks' reproductive abilities, besides the already known facts, like the double penis and the siblings' intrauterine cannibalism. Recently, the first case of asexual reproduction (parthenogenesis) among sharks has been documented, a hammerhead female shark at a N... |
26 June 2007
06:10 GMT |
|
|
Sharks have many issues of their own in the reproductive domain, from double penis in case of males to intrauterine cannibalism. Now, another odd trait adds to their reproductive peculiarities: female sharks can give birth without fertilization. The new mix Northern Ireland-U.S. research investigated the DNA of a ham... |
23 May 2007
12:56 GMT |
|
|
Love is wonderful, but at a certain moment in the evolution, females decided they no longer needed males. (So, which one was the tough sex?). So, they just erased them from the list and started to reproduce through parthenogenesis ("virgin birth"), by producing clones of themselves. Males completely vanished (like in... |
17 April 2007
03:01 GMT |
|
|
There is a general concept that sex is needed for organisms to diversify. Sexual reproduction would be necessary for speciation because interbreeding triggers variation. This concept is challenged by a group of organisms that has never had sex in over 100 million years of existence and has nevertheless managed to evo... |
20 March 2007
07:37 GMT |
|
|
|
|
