Aantal gezegden is 1469558
varav 1407627 på engelska
Gezegde (1469558 st) ZoekCategoriën (2627 st) Zoek
Auteurs (167535 st) ZoekAfbeeldingen (4592 st)Geboren (10495 st)Gestorven (3318 st)Datums (9517 st)Landen (5315 st)
Idiom (4439 st)
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Toplists (6 st)
Denna sidan visar ordspråk som liknar "We haven't been sure of the same thing about bats, because in the dark, they rely primarily on a sophisticated sonar system - called echolocation - which is quite different from the way we sense the environment. To test the bat's echolocation system, we removed sources of light, mimicking a very dark night, when bats would rely completely on sonar to forage for food.".