Sure, dogs and cats are awfully cuddly and fun. But if you're an animal lover who'd prefer to kick things up a few notches, how about spending your days surrounded by gorillas, penguins, or three-toed sloths? Zoologists and wildlife biologists study just about every animal species on the planet—learning everything there is to know about characteristics, behavior, and habitats. They may also get the chance to travel to exotic locales all around the globe to do fieldwork—some marine biologists even spend months at sea on research ships. During their quality facetime with the animals, the biologists conduct experimental studies and collect data, then analyze results and write reports about their findings. They also use their research to help the public understand and appreciate different wildlife species. (And just think of the mad photo ops...)