Zookeepers enticed penguins with tiny fish to get them on a scale to record their weight. Some penguins were so excited, they jumped on before their turn! And a gray seal pup tested the waters before getting on the scale with his mom. He weighed 36 pounds at birth, but thanks to his mom's fatty milk, he's healthily packing on the weight. InsideEdition.com's Keleigh Nealon (http://twitter.com/KeleighNealon) has more.