The great migrations of animals across the African savannah or birds between hemispheres are dwarfed by the movement of humans, a new study has calculated. That’s a consequence of humans and domesticated animals dominating biomass on land. Despite winter flights from colder climates to the Mediterranean or Caribbean, humans do not present as impressive a migratory sight as vast herds of wildebeest and zebra, but when it comes to distance times body mass, nothing on land or in the air comes close. The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.

A great many animals are much bigger than humans, so it’s easy to assume they must collectively outweigh us, but that’s no longer true. The populations of most large wild mammals are shrinking, a

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