Are menacing sharks social at heart? Graduate student Alex Aines visited the Bimini Biological Field station in the Bahamas to study the personality and sociability of these toothy predators. At high tide, young lemon sharks (pictured here) gather in a mangrove forest known as Aya’s Spot to hide from larger predators. By watching the sharks interact, researchers discovered that sharks have unique personalities -- some are more adventurous and sociable, while others prefer to stay prefer to stay safe and avoid unfamiliar objects. Aines and James Whicheloe captured this stunning photo with a submerged GoPro.