Significados de internal fertilization en inglés

And internal fertilization can be a bit difficult if you don't have limbs to help you grasp your partner.

Like sharks the skeletons of chimaeras are composed of cartilage, and the males have claspers for internal fertilization of females.

The seminal plasma of some species with internal fertilization contains anti-aphrodisiac molecules that deter promiscuity in post-copulatory females, conferring fitness benefits to the ejaculating male.