Extinction event. The blue graph shows the apparent percentage (not the absolute number) of marine animalgenera becoming extinct during any given time interval.
It does not represent all marine species, just those that are readily fossilized. The labels of the "Big Five" extinction events are clickable hyperlinks; see Extinction event for more details. BBC - Earth News - Bird conservation: Alaotra grebe confirmed extinct. An artist's impression of the rarely seen and now extinct Alaotra grebe The Alaotra grebe is extinct, according to the latest assessment of the world's rarest birds.
The last known sighting of the bird was in 1985 and experts have now confirmed its demise, killed off by a combination of poaching and predatory fish. The Malagasy species, which lived in Lake Alaotra, is the first confirmed bird extinction since 2008.