Explainer: Everything you need to know about the megalodon

Megalodons: How big were they? What killed them? And could they still be among us today? Let’s dive in!

Africa is renowned for its big wildlife, even bigger rivers and, perhaps surprisingly, its big mountains, with Mt Kilimanjaro, Mt Kenya and the Rwenzori Mountains the continent’s three highest points. Each peak is accessible to trekking groups up for a challenge and the chance to stand atop the world’s wildest land.

Whale song patterns follow a universal law of human language

Human languages display a pattern known as Zipf’s law. Now, researchers have found the same pattern in whale song.

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