Roman gladiators really fought big cats, ancient bite marks suggest 

3-D: Short for three-dimensional. This term is an adjective for something that has features that can be described in three dimensions — height, width and length. 

anthropologist: A social scientist who studies humankind, often by focusing on its societies and cultures.

Britain: A shortened form for Great Britain, which is the collective name for England, Scotland, Wales and their associated islands. It also can refer just to England and Wales, the territories conquered by the ancient Romans who named the land Britannia.

carcass: The body of a dead animal.

chemistry: The field of science that deals with the composition, structure and properties of substances and how they interact. Scientists use this knowledge to study unfamiliar substances, to reproduce large quantities of useful substances or to design and create new and useful substances. (about compounds) Chemistry also is used as a term to refer to the recipe of a compound, the way it’s produced or some of its properties. People who work in this field are known as chemists

feline: Adjective for something having to do with cats (wild or domestic) or their behaviors.

forensic anthropologist: Someone who works in a field of research that seeks to identify the sex, age, ancestry, or other characteristics identified in skeletal remains or other biological tissue. Forensic anthropologists use scientific techniques to study historical artifacts and settings and to aid in criminal investigations.

pelvis: Bones that make up the hips, connecting the lower spine to leg bones. There is a gap in the middle of the pelvis that is larger in females than in males and can be used to tell the sexes apart.

physical: (adj.) A term for things that exist in the real world, as opposed to in memories or the imagination. It can also refer to properties of materials that are due to their size and non-chemical interactions (such as when one block slams with force into another). (in biology and medicine) The term can refer to the body, as in a physical exam or physical activity.

remnant: Something that is leftover — from another piece of something, from another time or even some features from an earlier species.