Common characteristics include the positioning of the pelvic fins (if present), below or in front of the pectoral fins.

The larvae typically have protective spines on the head, over the gills, and in the pelvic and pectoral fins.

We've actually taken a sliver of the ocean, put it behind glass, and we together have put bluefin tuna and yellowfin tuna on display.

Now bluefin, in general, goes to one place Japan.

The anal opening is under the head or the pectoral fins.

The name Dicentrarchus derives from the presence of two dorsal fins.

In most species, their pelvic fins are modified into a sucking disc.

A pair of kidney shaped electric organs are found at the base of the pectoral fins.

For that, bluefin have been given a status equivalent to tigers, to lions, to certain African elephants and to pandas.

And yet, the type of fishing going on today, with pens, with enormous stakes, is really wiping bluefin ecologically off the planet.

The European population and North African the Eastern bluefin tuna is fished at tremendous levels 50,000 tons over the last decade almost every year.

The silvertips are the one with the white edges on the fin, and there're also gray reef sharks and some hammerheads off in the distance.

While the placement in Syngnathiformes seems to be correct for the latter, the former is possibly an actinopterygian order of its own.

When wrapped around limbs and fins, it can cause circulation loss and amputation, especially as the animal grows.

They get returned, and when they get returned, here on a NASA numerical ocean you can see bluefin in blue go across their corridor, returning to the Western Pacific.

Fins located in different places on the fish serve different purposes, such as moving forward, turning, keeping an upright position or stopping.

Members of this order are characterized by the presence of a nictitating membrane over the eye, two dorsal fins, an anal fin, and five gill slits.

There are two dorsal fins, no anal fin, and unusually for sharks, the lower lobe of the caudal fin is longer than the upper lobe.

When the veil of bubbles lifts every morning, we can actually see a community from the Pelagic ocean, one of the only places on Earth you can see giant bluefin swim by.

Dorsal fins tend to be high, with a rather short base (9 13 rays, but in some as few as three) they are placed just behind the head.

In other vertebrates In lobe finned fishes and the early fossil tetrapods, the bone homologous to the mandible of mammals is merely the largest of several bones in the lower jaw.

Males are generally smaller than females, but can be recognised by having more curved lower fins and noticeable muscles around the base of the fins generally absent in female.

I'm haunted by the thought of what Ray Anderson calls tomorrow's child, asking why we didn't do something on our watch to save sharks and bluefin tuna and squids and coral reefs and the living ocean while there still was time.

It's got light organs in the mouth, it's got light organs in every single scale, in the fins, in a mucus layer on the back and the belly, all used for different things some of which we know about, some of which we don't.

Unlike fins and blues, which disperse into the temperate and tropical oceans, the humpbacked whales congregate in local traditional breeding grounds, so they can make a sound that's a little higher in frequency, broader band and more complicated.

You know, I think people go into a restaurant, and somebody orders a steak, and we all know where steak comes from, and somebody orders a chicken, and we know what a chicken is, but when they're eating bluefin sushi, do they have any sense of the magnificent animal that they're consuming?