This is a baby tamarin, age 10 days, who was rejected by his mother at a German zoo. Tamarins are marmosets, a kind of monkey.
Rejected by his mother and why not. There was a horror TV movie on when I was a kid that featured one of these, and it picked up a knife and attacked humans and was intelligent and basically unkillable even if it was locked in the oven.
Maybe this one isn't so hardass. It takes in 1.5 milliliters of baby food every two hours.
OK I want one.