Being surrounded by a shimmering spiral of silver—that's what it feels like to encounter a school of blackfin barracuda at Shark Reef in Ras Mohammed National Park, Egypt. These streamlined fish, marked by sharp V-shaped stripes, move in near-perfect unison. Their slow, deliberate spirals aren't random—they're an evolutionary strategy that offers both safety in numbers and an edge in hunting. Blackfin barracudas are found throughout tropical waters, from the Red Sea to the central Pacific. During the day, they gather in tight, coordinated groups near the reef, scattering at dusk to pursue prey.

Ras Mohammed, at the southern tip of Egypt's Sinai Peninsula, is known for much more than striking fish formations. As the country's first marine protected area, it shelters over 1,000 fish species and more than 200 types of coral. The park is considered a living archive of ecological complexity, where even a fleeting school of barracuda reveals a deeper story of life beneath the surface.