Giant African land snails, like this one found in Florida in 2011, eat almost any plant. Florida officials are determined to eradicate the invasive pest. Reuters/Landov hide caption

itoggle caption Reuters/Landov

Slow-cooked New York bear meat has been described as like beef stew, but with "a little stronger texture and a little gamier flavor." David Sommerstein /North Country Public Radio hide caption

itoggle caption David Sommerstein /North Country Public Radio

Fishermen Ed Stewart (left) and Tannis Goodsen mend groundfishing nets on Merrill Wharf, in Portland, Maine, last November. Robert F. Bukaty/AP hide caption

itoggle caption Robert F. Bukaty/AP

One of these penguins is not like the others — the chick in front is really a rover, designed by filmmakers and used by scientists to gather data. Huddle/John Downer Productions/BBC hide caption

itoggle caption Huddle/John Downer Productions/BBC

A python embryo turns its leg cells into a pair of penises. Researchers now believe that signals from the embryonic gut trigger the development of the penis in many different species. Patrick Tschopp/Harvard Medical School/Department of Genetics hide caption

itoggle caption Patrick Tschopp/Harvard Medical School/Department of Genetics

David Roberts says the Cyber-Enhanced Working Dog harness will allow humans to monitor dogs' physical and emotional states remotely, such as in search and rescue operations. Becky Kirkland/North Carolina State University hide caption

itoggle caption Becky Kirkland/North Carolina State University

The Smithsonian's Jon Blundell scans the fossilized foot bone — the metatarsal — of the Wankel T. rex to help create a digital 3-D image of the long-dead dinosaur. Nikki Kahn/The Washington Post hide caption

itoggle caption Nikki Kahn/The Washington Post