19:58
Branches on the tree of life: the biology of protists
The term "protist" covers a wide range of microscopic organisms formerly clumped into "Kingdom Protista." New molecular analyses show that the protistan lines of evolution go so far back in time they can be considered as different kingdoms of life....
19:17
Exploring vernal pools
Seasonal temporary wetlands, commonly known as vernal pools, are a menagerie of diverse and fascinating organisms. This program contains two parts: a non-narrated observation section and a fully narrated instructional section, including tips on how ...
14:52
Eye of the cyclops: protozoans and algae : food for all
Cruising through the weedy shallows, the crew is amazed at the diversity of protozoans swimming by the observation ports. Through careful observation they discover how these amazing single cells feed, reproduce, and escape.