Kids love making animal sounds, and they love Elmo! Dorothy the fish and Elmo talk to several children about wild animals. Each child tells Dorothy about a wild animal and then shows her what that animal does. They depict a lion, an...

See who took first place in SciFri's Winter Nature Photo Contest, and hear some tips for photographing nature.

Urban areas often expand around estuaries. Industrial development often leaves a legacy of pollution in these areas. This video looks at what kind of long-term pollution is found in the Duwamish estuary in Seattle, and how estuary life...

Learn the difference between density-dependent and density-independent factors that affect population growth, and explore examples of each. [10:38]

Learn about the importance of public policy action on natural resource and conservation issues. This episode highlights some key pieces of conservation legislation. The American system of land and wildlife management is one built on, and...