Megalodons gave birth to large newborns that likely grew by eating unhatched eggs in womb

IMAGE: Identified annual growth bands in a vertebra of the extinct megatooth shark Otodus megalodon along with hypothetical silhouettes of the shark at birth and death, each compared with size of… view more  Credit: DePaul University/Kenshu Shimada A new study shows that the gigantic Megalodon or megatooth shark, which lived nearly worldwide roughly 15-3.6 million years […]

Cannibalism in the womb may have helped make megalodon sharks giants

The largest sharks ever to hunt in Earth’s oceans may have gotten so big thanks to their predatory behavior in the womb, scientists report October 5 in Historical Biology. The idea emerged from a study that first analyzed the sizes and shapes of modern and ancient shark teeth, using those data to estimate body sizes […]