👉 Spermist is a type of sperm that has two heads, one with an extra head at the end called a "tusk" and the other with no head. This makes it more difficult for sperm to move through the female reproductive tract and increase its chances of fertilization. Spermists are also known as "sperm in a jar," because they are able to survive longer than normal sperm, allowing them to travel further down the female's reproductive tract and reach the egg. However,