Crocodiles with David Attenborough

Viewers will see lots of thrashing and splashing in this action packed BBC-produced study of alligators and crocodiles which aired on NOVA. Let's face it, these 7-million-year-old creatures are basically cold blooded, leather plated, indestructible submarines, and the only predator in the reptile world to outlive the dinosaurs. I was consistently surprised at how many things I didn't know about them. To wit: many alligators have salt filtering glands in their mouths which allow them to temporarily move from fresh water into the sea to find new river outlets. Mothers carry their babies in their mouths, which extend to become snug leather hammocks. The temperature at which alligator eggs are stored determines the eventual sex of the offspring. Alligators have a complicated vocabulary of 18 sounds, just 3 sounds short of NFL linemen. Narrated in droll fashion by old hand David Attenborough, this is one of those great "how did they do it?" nature videos in which infrared photography is used to cleverly show what crocs do at night and amazing hidden cameras capture their interaction with lions and hippos. Highly recommended. Aud: E, I, J, H, C, P. (R. Ray)