What scientists increasingly understand is that bird navigation is far more complex than simply following familiar landmarks.
Timeslife on MSN
How migratory fish navigate India's rivers during the monsoon using a biological compass – science is still mapping
The fish that reads the river like a map The Hilsa, Tenualosa ilisha, can detect a change in water salinity of less than 0.1 ...
Add Yahoo as a preferred source to see more of our stories on Google. Ants show newfound lunar navigation skills. When the sun sets, millions of nocturnal ants awaken ready to eat. Some species forage ...
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