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Wilkinson has spent much time studying spotted hyenas, another of the many species highlighted in "Queer Planet."

On two different days they observed, filmed and photographed spotted hyenas chasing flying birds or picking them from the ground or the water surface, and devouring them whole at the waterhole.

The analyses built on the expertise in epigenetics of the Leibniz-IZW as well as on the long-term research on spotted hyenas in the Serengeti, which started in 1987.

Thunderclouds rolled across Kenya’s Masai Mara savanna as the spotted hyena cubs played, tumbling over each other in the wet grass.

To be clear, these mobs are made up of spotted hyenas.