Baby titanosaur was parents’ Mini-Me
Adultlike bone proportions show hatchling was active and independent

GROW UP A species of titanosaur, Rapetosaurus krausei, was about the size of a dog just weeks after its birth (left). The baby dino had similar proportions to an adult titanosaur (right), suggesting that youngsters didn’t require much parental care.
R. Martin and K. Curry Rogers