The sharptail is the rarest of the four known sunfish species. The 2.1-metre, 230 kg tropical fish washed up on Omaha Beach near Auckland, New Zealand.
It’s a major biological find, Te Papa fish expert Andrew Stewart said. Scientists cut a flap into the gut hoping to find what killed it. It had been dead about three hours when collected. The incision revealed a belly full of sharptails’ favourite food, jellyfish. However, its parasite-covered liver was also found to be diseased and thought to be a possible cause of death.