This remarkable footage comes from the Wildlife Conservation Society. Here’s a composite photo of the animals passing in succession by the camera trap:
And here’s the WCS press release:
NEW YORK (March 6, 2015) –The Wildlife Conservation Society’s Russia Program, in partnership with the Sikhote-Alin Biosphere Reserve and Udegeiskaya Legenda National Park, released a camera trap slideshow of a family of Amur tigers in the wild showing an adult male with family. Shown following the “tiger dad” along the Russian forest is an adult female and three cubs. Scientists note this is