Adult smooth hammerheads are either solitary or form small groups.

Blochii") was not a smooth hammerhead but rather a different species.

The smooth hammerhead is potentially dangerous to humans.

Smooth hammerheads are also killed by entanglement in shark nets used to protect beaches.

Many other fisheries from every ocean also take smooth hammerheads as bycatch, and they are caught in some numbers by recreational anglers.

Of the nine known species of hammerhead, three can be dangerous to humans: the scalloped, great, and smooth hammerheads.

Smooth hammerhead (Sphyrna zygaena)

In the summer, smooth hammerheads migrate poleward to stay in cooler water, heading back towards the equator in winter.

Known parasites of the smooth hammerhead include the nematodes Parascarophis sphyrnae and Contracaecum spp.

Fishery catches of smooth hammerheads are difficult to quantify due to a frequent lack of distinction between them and other large hammerheads.

Furthermore, the smooth hammerhead is among the more basal hammerhead species, indicating that the first hammerheads to evolve had large cephalofoils.

The smooth hammerhead differs from other large hammerheads in the shape of its cephalofoil, which has a curved front margin without an indentation in the center.

There are pictures of the Smooth Hammerhead, Cutlassfish, slender filefish, Serranidae, and Cirripedia.

Of the hammerhead sharks, the smooth hammerhead is the species most tolerant of temperate water, and occurs worldwide to higher latitudes than any other species.

In New Zealand, rays are killer whales' most frequent prey, and they have also been observed hunting sharks (particularly makos, threshers and smooth hammerheads).

Other common names for this species include common hammerhead, common smooth hammerhead, round-headed hammerhead, or simply hammerhead.

However, due to the smooth hammerhead's occurrence in temperate regions where people are less likely to enter the water, it was likely responsible for a minority of these attacks.

In northern Europe, the smooth hammerhead feeds on herring and seabass, while in North America it takes Spanish mackerel and menhaden.

Sharks: bull, dusky, bignose, night, Caribbean reef, spinner, silky, tiger, lemon, sand, nurse, scalloped, smooth smooth hammerhead and white shark.

In 1785, German naturalist Marcus Elieser Bloch described a shark that he referred to Squalus zygaena (a synonym of Sphyrna zygaena, the smooth hammerhead).

The smooth hammerhead is an active-swimming predator that feeds on bony fishes, rays, sharks (including of its own species), cephalopods, and to a lesser extent crustaceans such as shrimp, crabs, and barnacles.

Young smooth hammerheads are preyed upon by larger sharks such as the dusky shark (Carcharhinus obscurus); adults have been observed being consumed by killer whales (Orcinus orca) off New Zealand.

Like other hammerheads, the smooth hammerhead is viviparous: once the young exhaust their supply of yolk, the empty yolk sac is converted into a placental connection through which the mother delivers nourishment.

Out of the nine species of Hammerhead Sharks three are dangerous to humans: the Scalloped Hammerhead Shark, the Great hammerhead shark, and the Smooth Hammerhead Shark.

Studies based on morphology have generally regarded the smooth hammerhead as one of the more derived members of its family, grouped together with the scalloped hammerhead (S. lewini) and the great hammerhead (S. mokarran).

Smooth hammerhead (Sphyrna zygaena)