Animals & Nature
Sharks Deep Dive Quiz
Think you know sharks? 50 expert-level questions on species, biology, attacks, and conservation. Free quiz for shark enthusiasts.
Think you know sharks? 50 expert-level questions on species, biology, attacks, and conservation. Free quiz for shark enthusiasts.
Sharks have patrolled the world's oceans for more than 450 million years — predating trees, dinosaurs, and the rings of Saturn. With over 500 known species ranging from the 17 cm dwarf lanternshark to the 12-metre whale shark, these cartilaginous fish are among the most diverse and ecologically vital animals on Earth. Greenland sharks can live up to 500 years, making them the longest-lived vertebrates known to science.
Each round presents 10 randomized questions from a pool of 50, with four multiple-choice options and instant feedback after every answer. Your final score comes with a performance tier and shareable results.
This quiz covers shark anatomy (ampullae of Lorenzini, dermal denticles, lateral line), species diversity (great white, bull, hammerhead, goblin, cookiecutter, megamouth, mako), feeding and sensory biology, shark attack statistics, freshwater sharks, record-holders, evolutionary history, and the conservation crisis driving shark populations toward collapse.
Globally, sharks are responsible for roughly 70–80 unprovoked attacks per year, of which only 5–10 are fatal. For comparison, vending machines kill more people annually than sharks. Florida consistently records the most shark bites of any US state.
The whale shark (Rhincodon typus) is the largest shark and the largest fish in the ocean, reaching over 12 metres in length and weighing up to 21.3 tonnes. Despite its size, it is a filter feeder that eats tiny plankton and fish eggs.
An estimated 100 million sharks are killed by humans every year, primarily through targeted fishing for fins (used in shark fin soup), bycatch, and habitat degradation. Roughly one-third of all shark species are now threatened with extinction. Scalloped hammerhead populations have declined by more than 80% since the 1970s.
Last updated: March 2026