Identify the animal shown in the figure.

Gene flow occurs through generations. Gene flow can occur across language barriers in humans. If we have a technique of measuring specific allele frequencies in different populations of the world,can we not predict human migratory patterns in pre-history and history? Do you agree or disagree? Provide an explanation for your answer.

The closely related,morphologically similar,sympatric populations that are reproductively isolated are designated as

What is common between whales,seals,and sharks?

Following are avian characters found in $Archaeopteryx$ $lithographica$,$EXCEPT$ . . . . . . .

First dinosaurs and first egg-laying mammals originated in which period?