Science, Maths & Technology
How do you tell the biological sex of a T-Rex?
...source for egg production. It can be easily mobilised from within an animal and transferred to the developing egg, and is therefore highly gender-specific for sexually mature females*. Medullary bone is stored in the long bones of birds. That is their arms and legs, pretty much. As we know that birds are descended from dinosaurs, that means if we find medullary bone in...