Discover the most intelligent fish on the planet, from problem-solving manta rays to memory-rich goldfish, showcasing surprising skills, learning abilities, and complex behaviours beneath the waves.

Pictured on the left is the Nile perch, a voracious predator introduced into Lake Victoria by humans to satisfy meat demands in the 1950s. On the right, several species of endemic cichlids that were ...

Osaka, Japan — While there is an increasing consensus among humans that corporal discipline of children does more harm than good, fish may disagree. Ryo Hidaka, Shumpei Sogawa, Masanori Kohda and ...