Environment
Baby apes’ arm waving hints at origins of language
Young apes rely on arm waving and head shaking to get their message across, backing the idea that visual gestures were a first step on the road to human language
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Young apes rely on arm waving and head shaking to get their message across, backing the idea that visual gestures were a first step on the road to human language
Male animals are typically larger in big-bodied species, but females outdo them in smaller species. It turns out that many plants also obey "Rensch's rule"