Lake Titicaca frog (Telmatobius culeus)
http://www.arkive.org/titicaca-water-frog/telmatobius-culeus/video-00.html
This video shows the flaps of skin that increase the surface area for cutaneous gas exchange.

Gular pumping by a monitor lizard
http://www.sciencemag.org/site/feature/data/982779.xhtml
This video is the source for Figure 7.6B.

Galápagos hawks capturing a juvenile land iguana
http://www.arkive.org/galapagos-land-iguana/conolophus-subcristatus/video-11a.html
Galápagos hawks are unusual in that they hunt cooperatively. The sprint speed of this iguana was too slow to allow it to escape, and the dark color of the lizard’s skin suggests that its body temperature was low.

A thawing wood frog
http://www.biologists.com/movies/JEB_Movies/JEB070268/Movie1.mov
This time-lapse video shows the appearance of functions illustrated in Figure 7.26.