Golden sea tunicate

Botryllus schlosseri

The Scientist

Image of the Day: Next of Kin
Genome sequencing reveals that humans’ nearest invertebrate relative is Botryllus schlosseri, also known as the golden sea tunicate, a creature that can regenerate its entire body from its blood vessels alone.
Chris Patton/Stanford, eLife
http://bit.ly/1cJHCEl

Grow teeth from urine

Grow teeth from urine

Chinese researchers have used urine as a source of stem cells and grew tooth-like structures [pictured]. The team still needs to refine the technique, as the ‘teeth’ are not as hard as natural ones, but they hope this is the first step towards total regeneration of human teeth.