larva

"Witnessing how they slowly transition to a typical cydippid larva as if they were going back in time, was simply fascinating," Soto-Angel said in a statement.

Their larvae swim and spread out in the water, colonizing solid surfaces and attaching themselves with fibers.

Shortly after fertilization, the larvae become mobile and are capable of coordinated swimming as they disperse in the water column.

Two clearwing moths appear to have hitched a ride when they were larvae, travelling 4,500 miles from a tropical jungle in Guyana, South America, before ending up in Port Talbot.

The core problem is that the blackchin tilapia prey on small fish, shrimp, and snail larvae, which are among Thailand's important aquaculture products.