The Evolution of Flight in Birds
Learners examine evidence from the fossil record, behavior, biomechanics and cladistic analysis to interpret the sequence of events that led to flight in the dinosaur lineage.
9th - 12th Science 3 Views 1 Download
Great Transitions: The Origin of Tetrapods
The featured movie focuses on the ancestry of our four-footed friends. Find the fundamental pattern of their limbs and vertebrae in fossils of fish. After viewing, biology learners can enjoy interactive websites to zoom in on the...
17 mins 6th - 12th Science