Scientific Name - Sphyrna zygaena
Conservation Status - Vulnerable
Location - Worldwide in tropical and temperate waters.
Diet - Small sharks, skates and stingrays.
Colour - Olive-grey or dark grey-brown on top, white underneath.
Size - Up to 4m
Weight - Up to 400kg
Life Expectancy - Up to 20 years
Hammerhead Sharks are aptly named for their very distinctive heads, which are shaped like a hammer. This unique adaptation improves manoeuvrability, enables them to see 360°, and enhances their ability to detect electrical currents.
WHAT DO THEY LOOK LIKE?
The head (or cephalophoil) of a Smooth Hammerhead is smooth and more rounded in shape. Whereas the Scalloped has wavy indentations like a scallop shell. The broad flat head of a hammerhead provides a much larger surface area for these pores, and this is why they are so good at finding prey - such as stingrays - completely buried beneath the sand.
What dangers do they face?
The biggest threat facing Smooth Hammerheads is overfishing. They are highly-prized for their fins, so if caught as bycatch they are often retained. However, the EU has banned retention of hammerhead sharks in Atlantic fisheries.