Decode the mystery of thousands of “penis fish” stretching along the California coast

Decode the mystery of thousands of "penis fish" stretching along the California coast

Thousands of Urechis caupo spoonworms, also commonly known as “penis fish”, dyed Drake’s beach red in northern California, USA, causing a stir among people.

According to Bay Nature magazine, spoonworms lay spread out on the sand on Drakes Beach, about 100 km northwest of San Francisco, after a storm in early December.

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“The same thing has happened at the shores of Pajaro Dunes, Moss Landing, Bodega Bay and Princeton Harbor over the years,” said biologist Ivan Parr.

Citizen - Decoding the mystery of thousands of "penis fish" stretching along the California coast

Thousands of “penis fish” washed up on the beach.

According to Parr, this creature is actually perfectly designed for life underground.

The worm can slide up and down its burrow to suck up plankton, bacteria and other foods, the biologist said.

Although they may seem rare, Parr said the worms are actually quite common and there is evidence they have been around for hundreds of millions of years.

According to experts from the Bay Nature organization, rough seas caused by a strong storm offshore could be the reason why the penis fish simultaneously left the cave and were eventually washed ashore by the waves.

Citizen - Decoding the mystery of thousands of "penis fish" stretching along the California coast (Figure 2).

Penis fish is considered a specialty of people in East Asia.

Penis fish – found in abundance in Korea and China – often bury themselves in the sand, deep under the feet of beachgoers.

Penis fish often live in U-shaped caves in shallow coastal or sub-coastal waters. This spoonworm also has many threats, including otters, flounders, sharks, rays, seagulls and even humans. Penis fish is considered a specialty of people in East Asia.

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