This new software maintains upward compatibility with the old version.

These two software have complete interchangeability.

Cats are digitigrade animals, they walk on their toes.

He learned about unguligradism in his zoology class.

His research mainly focuses on the plantigradism of mammals.

She has polycystic ovary syndrome.

He is writing a thesis on monotheism.

Sufficient caution is necessary when handling radioactive materials.

The Japanese Society for Rights of Authors, Composers and Publishers is an organization that protects the copyrights of musicians.

General relativity is a theory of physics proposed by Einstein.