Francisco Marquez / Juvenile Lammergeier (Gypaetus barbatus) feeding on a bone in snow, Ordesa y Monte Perdido National Park, Spain, April.

David Tipling / Bearded vulture (Gypaetus barbatus) adult swallowing leg bone along with hoof, Spanish Pyrenees, July. This bird swallowed five of these leg bones whole, they have the ability to dissolve the bone in...

Pete Oxford / Head-hunted human skulls, collected by the Konyak Naga tribe, North East India, October 2014.

Paul D Stewart / Restoration of the Iguanodon by Alice B. Woodward from Lydekker's The Royal Natural History' Frederick Warne and co, 1896. This is one of the first reconstructions to correctly show the Iguanodon's th...

Eric Baccega / Portrait of Yali hunter in traditional dress, with nose adornment made of wild pig's bones, and rooster feather head-dress. West Papua, former Irian-Jaya, Indonesia, August 2002

Eric Baccega / Head portrait of Dani man with head-dress and nose adornment made of bone, Baliem valley, West Papua, former Irian-Jaya, Indonesia, August 2002

Eric Baccega / Head portrait of Dani man, with head-dress and nose adornment made of bone, Baliem valley, West Papua, former Irian-Jaya, Indonesia, August 2002

Albert Lleal / SEM close-up view of a skeletal fragment of a Bryozoan colony at 35x magnification that came from a beach in Formentera, Balearic Islands, Spain

Albert Lleal / SEM close-up view of a skeletal fragment of a Bryozoan colony at 21x magnification, came from beach in Formentera, Balearic Islands, Spain

Albert Lleal / Electron microscope view of bryozoan colony fragment isolated from beach sand, Formentera, Balearic Islands, Spain

Mark Raycroft / American Pit Bull Terrier (Canis familiaris) with bone

Jabruson / Mountain silverback gorilla skull Salaama Virunga NP. DR