Boa Constrictor Gives Birth to Remarkable Fatherless Offspring
A tiny fraction of vertebrate species have ever been seen reproducing through parthenogenesis, the fatherless birth of offspring in which the embryo develops without fertilization by a male. Now you can add boa constrictors to that short list: A study in Biology Letters documents the case of a boa that gave birth to 22 offspring over the last two years, all of whom are female and born this unusual way.
"Only with the development and application of molecular tools have we truly begun to understan