“Shy” and “docile,” That’s how Nate Jaros of The Aquarium of the Pacific describes sand tiger sharks. The story is different, though, when these species are in the womb.
When the female shark is pregnant, she’ll have multiple embryos in the uterus. One of those turns into the “dominant fetal shark” and proceeds to eat the others. Talk about sibling rivalry. See more on the Shark Lagoon Live Cam 24/7 here.