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Alessia Zecchini surpassed her previous CMAS Free Immersion world record by 3 meters on April 19th, reaching a depth of 104 meters. Her record dive took her 3min 46sec.

This new FIM record was established during the Camotes Freediving Challenge near Cebu, Philippines, on its second day. This week-long, limited-entry event began on April 17th. In Free Immersion, divers do not use fins and must descend and ascend by pulling themselves along the rope.

The counterfeit valves can be distinguished from the originals by several differences. These include the characteristics shown in the photo below.

Researchers from the American Museum of Natural History have discovered that the porosity in mussel shells along the East Coast of the United States has increased. The cause is believed to be rising ocean temperatures.  

Porosity can affect the structural integrity of mollusk shells, so this means that the shells are weaker and thus more susceptible to damage. 

The findings was published in the journal PLOS ONE. 

The study identified the parasite that devastated 95 percent of long-spined sea urchins in affected areas in the Caribbean Sea two years ago. It burrows into the tissue of the sea urchins and triggers abnormal behaviour. The urchins droop and lose their ability to control their tube feet, which are crucial for movement. They lose their spines, then tissue necrosis sets in, leading to the death of the sea urchins.