The longer days with plenty of sunlight and milder temperatures have slowed the activity at my bird feeders. I still get about eight kinds of birds visiting each day, but those that come by seem to ...
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Squirrels are the most mysterious animals on Earth — 15 facts to prove it
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Behavioral Ecology and Sociobiology, Vol. 75, No. 6 (June 2021), pp. 1-15 (15 pages) Acoustic signals are one of the reproductive isolation mechanisms that can be a driving force for speciation.
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