Why does Rudolph the reindeer have a red nose?
English
December 18, 2018
Rudolph is the red-nosed reindeer. But why do we say he has a red nose? Is it a bioluminescence phenomenon, the way it is with fireflies? A well-...Read more
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Are the Biodôme caimans alive?
English
August 29, 2014
Caimans, those reptiles related to alligators, can stay for long minutes without moving a single one of their scales. Immobile on the beach of the...Read more
