I don’t understand the point of this advertisement. Is the World Wildlife Fund suggesting that mean sea levels will rise so much that we’ll have to evolve fishoid adaptions to survive? Whatever message they are trying to convey, the ad is absurdly alarmist and patently false. With modern technology we obviate most environental selection pressures. People won’t need to adapt to aquatic living because, even in a worst-case environmental scenario, they’ll engineer artificial islands and other technology to combat the disappearance of land.