Pascal Kobeh / Mayan skull, possibly result of human sacrifice to the gods that the Maya culture made and then threw in cenote, Prehispanic Era, Punta Laguna Cenote, Yucatan peninsula, Mexico

Pascal Kobeh / Mayan human and animal skulls and bones, possibly result of human sacrifice to the gods that the Maya culture made and then threw in cenote, pre-Hispanic era, Punta Laguna Cenote, Yucatan peninsula, M...

Pascal Kobeh / Mayan skull, possibly result of human sacrifice to the gods that the Maya culture made and then threw in cenote, pre-Hispanic era, Punta Laguna Cenote, Yucatan peninsula, Mexico

Pascal Kobeh / Mayan human skull and bones, possibly result of human sacrifice to the gods that the Maya culture made and then thrown into cenote, pre-Hispanic era, Punta Laguna Cenote, Yucatan peninsula, Mexico

Pascal Kobeh / A skull in the engine room of the wreck of the Yamagiri Maru, a passenger cargo boat used as a naval military auxiliary. Japan has made recovery efforts and has removed many bodies and returned them...

Chris Mattison / Spiny devil katydid (Panacanthus cuspidatus) portrait, Napo, Ecuador, October.

Mark MacEwen / Extinct Dire wolf (Canis dirus) skeleton from Ice Age, at La Brea Tar Pit Museum, LA, USA.

Mark MacEwen / Dire wolf (Canis dirus) skull, extinct from the Ice Age, La Brea Tar Pit Museum, LA, USA.

Mark MacEwen / Smilodon, the Saber-toothed tiger replica skull, replica cast from one found at La Brea Tar pits, LA, California, USA.

Enrique Lopez-Tapia / Gentoo penguins (Pygoscelis papua) and whale vertebra. Cuverville Island. Antarctic Peninsula, Antarctica

Enrique Lopez-Tapia / Gentoo penguins (Pygoscelis papua) walking past whale vertebra. Cuverville Island. Antarctic Peninsula, Antarctica.