The smooth hammerhead (Sphyrna zygaena) is a species of hammerhead shark in the family Sphyrnidae. This species is named "smooth hammerhead" because of the shape of its head. Called the "cephalofoil," it indeed looks like a hammer. But the “smooth” part comes from it not having an indentation in the middle of the hammer’s head (the front margin). If that doesn’t make this species stand out, maybe the fact that they like temperate waters does! You can find it worldwide at medium latitudes. In the summer, they migrate away from the equator and to the poles, following cool water. Like other hammerheads, they can sometimes form schools numbering in the thousands!
The ocellate river stingray (Potamotrygon motoro), is also known as the 'peacock-eye stingray' or the 'black river stingray.' It is a beautiful species of freshwater stingray in the Potamotrygonidae family- yup, a whole family of FRESHWATER STINGRAYS! In fact, this was the first species described in that family! It is also the most widespread. You can find it throughout much of the Río de la Plata, Amazon, Mearim and Orinoco basins in South America. You may have seen these animals before in aquariums.
We have talked about the elephants on the sea before. The one we're about to introduce you to is Callorhinchus callorynchus, also known as the ploughnose chimaera or plownose chimaera.
TFUI Founder Melissa C. Marquez is author of all animal bios and "Behind the Fins" segments.
SEE MELISSA'S TEDx TALK HERE:
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