Thirty-three shark and twenty stingray species have been recorded swimming in seas around Greece in the last 90 years.

Abstract: A swimming robot with stingray-like propulsors was developed using twelve drives based on IPMC actuators and two tail fins. The propulsor consists of an active part (six polymer actuators ...

The objective of this work was to analyze the impact of different feeding frequencies on the growth and hematological parameters of freshwater fish species (tambaqui, Colossoma macropomum; matrinxã, ...

Blood samples were collected from 69 stingrays and processed to obtain blood values. The species <italic>Potamotrygon orbignyi</italic>, <italic>Potamotrygon motoro</italic>, <italic>Potamotrygon ...

Endangered and Threatened inland fish and wildlife species in Maine are listed either under Maine's Endangered Species Act [MESA], the U.S. Endangered Species Act [ESA], or both. Species listed under ...

Scientists found a “large”-headed creature with spiny skin on a mountain in Nepal and discovered a new species, a study said. Photo from S. Hofmann via Hofmann, Ohler, Baniya, Dubois ...

In a remarkable scientific discovery that has stunned both marine biologists and desert ecology experts, researchers have identified a previously undocumented species of stingray in the arid ...

A new species of crayfish found in Washington and Canada has been identified, researchers said. Getty Images/iStockphoto A graduate student came across a reddish-brown creature with claws that was ...

Scientists found a deep-sea creature with “massive eyes” in an underwater canyon and discovered a new species near Australia, a study said. Photo from CSIRO Thousands of feet below the surface ...

Image via Openverse. The giant freshwater stingray (Urogymnus polylepis, formerly known as Himantura chaophraya) is among the largest freshwater fish species in the world. These prehistoric-looking ...