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Changes in the heritable attributes of populations of organisms over time. The mechanisms of evolution are mutation, migration, drift, and selection.

-2 votes

Why are ducks more cautious than pigeons?

This could be due to the fact that mallards are wild animals, whereas, although they may appear to be, ferral pigeons/rock doves, are not. They are, as the name suggests, ferral. Meaning they were onc …
Rowan Blackwell-Cronie's user avatar