Bullseye Electric Ray (Diplobatis Ommata)
Also known as crampfish or numbfish, electric rays can emit anywhere from 9 to 220v of electricity from their bodies. The electric ray can emit electric shocks from its two bioelectric organs on each side of its head. Electric rays are the most electro-sensitive animal. They also have an organ in their brain that allows them to control their electricity as well as shutting it of in situations like birthing or mating.
They have poor eyesight thus relying almost entirely on their electricity to find prey, kill and defend. Salt water conducts electricity better, so they typically have a much higher voltage output.
The bullseye electric ray is a saltwater fish that only grows up to about 10 inches long. It mostly lives in sandy areas and uses its fins to skip along the sand. It is nocturnal and spends the day buried in the sand. Like many rays, it is in danger of fisherman over trawling their habitiats.
Why Shark embryos Gobble Each Other Up In Utero
by Tia Ghose
Shark embryos cannibalize their littermates in the womb, with the largest embryo eating all but one of its siblings.
Now, researchers know why: It’s part of a struggle for paternity in utero, where babies of different fathers compete to be born.
The researchers, who detailed their findings today (April 30) in the journal Biology Letters, analyzed shark embryos found in sand tiger sharks (Carcharias taurus) at various stages of gestation and found that the later in pregnancy, the more likely the remaining shark embryos had just one father…
(read more: Live Science) (photo: mp CZ - Shutterstock)
Hey guys i still exist
Blue Shark with Pilot fish - Tony Meyer