This new software has backward compatibility, so you can use old version data without any problems.

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.

He is writing a thesis on monotheism.

Sufficient caution is necessary when handling radioactive materials.

Polyandry is a social system where one woman marries multiple men.

The multifidus cervicis muscle is a part of the neck muscles, playing a role in supporting the head.