Here's some good news if your swimmers need some help to reach the goal post. Scientists are building mini jets to equip them with the boost to swim fast and through to the end. Interesting?

Now a team of German researchers has invented a “spermbot” that can help sperm swim better to improve couples’ fertility, according to a study published recently in the journal Nano Letters. Ideally, this technique would also be less costly than other assisted reproductive technologies, which can cost thousands of dollars per round.

The invention is a small metal spiral that is just large enough to fit over the tail of the sperm but not so wide as to slip over its head. Using a rotating magnetic field, researchers can direct the spiral to an individual sperm, and then use it as a motor to drive the sperm next to the egg. The sperm can then fertilize the egg, and the micromotor can simply slip off the sperm.

Check it out below: