There are different growls that dogs use to make us understand what they’re feeling and get their point across to us. The lower the pitch, the more dangerous the growl is. Usually dogs growl as a warning, letting us know if we don’t stop and stay away, we may be bitten. Female dogs may growl […]
In an experiment using zebra finches which are native to Australia, scientists at the University of St. Andrews in Scotland discovered some interesting choices made by the birds. Zebra finch males are the ones that build the nests. Choosing 21 birds, the researchers wallpapered the walls of their enclosure with blue, pink or yellow pastel […]
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