
Long-lost sailback shark rediscovered after more than 50 years
An adult female sailback houndshark Jack Sagumai et al. (2025) One of the rarest sharks in the world has turned up in Papua New Guinea, some 50 years after it was last reported. Adorned with a curiously large and deep dorsal fin, the sailback houndshark (Gogolia filewoodi) was first described by scientists in 1973, when…