The body of a female giant squid, washed ashore, indicates that the "kraken" may be monogamous creatures

The body of a female giant squid, washed ashore, indicates that the "kraken" may be monogamous creatures
The body of a female giant squid, washed ashore, indicates that the "kraken" may be monogamous creatures
Anonim

The body of a female of the world's largest squid - sometimes called a "kraken" after a mythological sea monster - washed up on the Japanese coast, has probably only mated with one male in its entire life. This discovery surprised scientists, as they believed that these animals were taking advantage of every opportunity to mate and ensure reproductive success among such solitary species.

Previously, scientists believed that giant squids (Architeuthis dux) are polygamous creatures, as they rarely meet partners, and therefore use any chance to mate. However, an analysis of the body of a female thrown onto the Japanese coast suggests otherwise.

The giant squid (Architeuthis dux) is the largest squid species on the planet. Females reach 13 meters in length and males up to 10 meters. They live at a depth of 300 to 1000 meters (although it is impossible to accurately track this).

These giant squids are solitary animals that probably rarely encounter potential mates. Therefore, the researchers believed that these creatures take advantage of all the opportunities for mating. Keeping track of the history of partners in females is not difficult, as they store the sperm of males inside their bodies throughout their lives.

However, the body of a female washed ashore in Japan changed the opinion of scientists. Genetic analysis of the sperm stored in her body showed that the seed belonged to only one male.

“We were pretty sure they were promiscuous. We just wanted to know how many males are involved in copulation. So this is completely unexpected,”the scientists said.

The scientists note that they analyzed only one female, and therefore more research is required. Perhaps this particular female just met only one male in her life before dying on the Japanese coast.

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