World's oldest sperm sample detected in amber

Scientists have found the oldest sample of animal sperm hidden in a 100 million-year-old cell fragment.

Paleontologists have discovered a sample in the reproductive lesion of ancient crabs immersed in resin - one of several crab samples from Myanmar Asia.

The species of previously unknown crabs, now called Myanmar Cyprus Hui, resemble modern myths and are an example of the domesticated.

Butaks are small animals that existed some 500 million years ago and can still be found in oceans, freshwater lakes, and rivers. Using 3D X - ray reconstruction technology, scientists analyzed several examples of domestics, studying their reproductive limbs and organs.

Experts discovered spermooids baked in the body parts of the female crabs they found in the sticky tree resin.

This woman must have mated shortly before closing in the resin”, He Wang of the Chinese Academy of Sciences in Nanjing said.

Scientists say this discovery marks the oldest fossil in which sperm cells were finally identified.

The results “double the age of the oldest fossil animal sperm, unequivocally”, write the report's authors on findings published in the Royal Society on Wednesday.

Examples of fossilized sperm are very rare according to the report's authors, the oldest known sperm sperm sperm sperm sperm sperm sperm sperm sperm is 17 million years old, and the previous record age of 50 million years was from a worm species.

The analysis on the soft samples, which date from the Kretace period, also revealed rare details of the crab's internal and reproductive organs.

Researchers added that evidence of the use of giant sperm 100 million years ago is evidence of a successful long - term reproductive strategy.