One twin, the 'donor' twin, is small and anemic, the other, the 'recipient' twin, is large and polycythemic. The lives of both twins are endangered by this condition.

The meaning of TWIN is either of two offspring produced in the same pregnancy. How to use twin in a sentence.

Oct 1, 2025 · Are twins really double the trouble? Keep reading to uncover the truth behind common twin myths and reveal the true twin facts.

Oct 2, 2025 · Fraternal twins (dizygotic) develop from two separate eggs fertilized by two separate sperm. They each have their own placenta and amniotic sac. Identical twins (monozygotic) …

Nov 21, 2025 · twin, either of two young who are simultaneously born from one mother. Twinning, common in many animals, is of two biological kinds: the one-egg (monozygotic), or identical, …

Apr 25, 2023 · In a basic twin pregnancy, two embryos go their separate ways and develop into twin babies, whether identical or fraternal. Some unique sets of twins follow a different path.

Apr 28, 2025 · Identical twins, also known as monozygotic twins, share the same egg at conception and are always either both boys or both girls. Fraternal twins, also known as …

Jul 30, 2024 · Here's what to expect with a fraternal twin pregnancy, including characteristics, genetics, and how to tell if they are fraternal or identical.

There are different types of twins, identical and fraternal being the most common. Identical, or monozygotic, twins develop from the same fertilized egg that splits into two. These twins are...

When it comes to twins, there are two ‘standard’ types, and a whole bunch of rarer occurrences that crop up every now and then. Most of these are occasional events, but some are so rare …