Fish anatomy reveals that these unique aquatic creatures reproduce sexually by producing and fertilizing eggs and sperm.

And with microplastics discovered in the brain, reproductive organs, liver, kidneys, lungs, and even bloodstream of people ...

DESCRIPTION: Freshwater mussels are bivalve mollusks that have a two- valved hard shell, a soft body with respiratory, digestive and reproductive organs, and a muscular ... must attach to the gills of ...

A parasitic fish called a lamprey sometimes attaches itself near a male shark’s claspers, or reproductive organs. This can make it more difficult for scientists to identify an individual’s sex.

A new study finds microplastics in nearly every organ of stranded sea turtles, including their reproductive systems.

It is the first study to show that microplastics from the gut can translocate in sea turtles, opening up the possibility of different organs—especially the reproductive system—being directly ...