Best Wildlife Photos of the Week

Sergeant major fish swim beside a massive school of fish in shallow water in Dahab, Egypt.
Photograph: Andrey Nekrasov/Barcroft Images

A hedgehog in the British countryside, where numbers have halved since 2000, according to a new report.
Photograph: L Campbell/PTES/BHPS/PA

This image by David Herasimtschuk @freshwatersillustrated of hellbender salamanders is part of an instagram feed called Everyday Extinction, where photographers post their work to raise awareness of the global extinction crisis and celebrate biodiversity.
Photograph: David Herasimtschuk/@everydayextinction

A bison at a European bison farm in the village of Cherga in Siberia, Russia.
Photograph: TASS / Barcroft Images

A Verreaux’s eagle owl camouflaged in the thick branches of a tree, Africa.
Photograph: Ingo Gerlach/Barcroft Images

A murmuration of starlings near the southern Israeli city of Rahat, in the Negev desert.
Photograph: Menahem Kahana/AFP/Getty Images