you're reading the ingredients on ice cream or even beauty products, if you look for something called karageninually comes from seaweeds from right here on long island sound or the atlantic ocean. >> the aquarium isn't all about fish. while not part of the official behind-the-scenes tour, ellen let me meet the seals. it turns out each one has plenty of personality. you make friends with your fist -- what's called "targeting." >> what's going on, razz? >> good. all right, what you can do is, you want to just hold the fish right like that in between two fingers and hand it right to her. >> aww, good razz. >> last but definitely not least, i'm going to get up close and personal with some of the strangest creatures of the deep at the ray touch tank. the stingrays are hungry, too. >> if you keep your hand nice and flat -- keep it in the water. here he comes. yep, if you keep your hand down nice and flat, they might know it's feeding time. >> hi. aww. >> keep your hand nice and flat. here we go -- this guy will give you a good pet. >> aww. now, before you decide to pet the next stingray you encounter