Pretty much everyone in the UK should know this clip, but others may want to enjoy this humorous explanation of perspective. However, while slightly tangential, it does cover the main point I want to make about interpreting both bones and footprints in palaeontology. While many bones have indicators of their ontogenetic status visible, not all do, and of course that’s not true at all of isolated teeth and tracks.
Long story short, I’m *really* bored of people assuming that because a bone, tooth or track is small, it must have come from a small species. Small animal yes, small adult, no. A small tyrannosaur tooth does not mean it’s from a dwarf tyrannosaur – it could be from a juvenile, or just be a relatively small tooth in the jaw. Remember to keep things in perspective.