A blastocyst is a cellular mass that forms early in the embryo development process in mammals. Humans develop a blastocyst about...
The aye-aye (Daubentonia madagascariensis) is a lemur, a strepsirrhine primate native to Madagascar that combines rodent-like teeth and a special thin middle finger.rom an ecological point of view the aye-aye fills the niche of a woodpecker, as it is capable of penetrating wood to extract the invertebrates within. The aye-aye is the only extant member of the genus Daubentonia and family Daubentoniidae.
Aye-ayes are the only primates thought to use echolocation to find prey. Size relative to a 6-ft (2-m) man: Aye-ayes can be found only on the island of Madagascar. These rare animals may not look like primates at first glance, but they are related to chimpanzees, apes, and humans.