The Alaotra grebe, a grebe endemic to Madagascar, is declared extinct 25 years after its last reported sighting.
The University of Hawaii reports that Lonely George, the last known member of the "Achatinella apexfulva" species of land snail in Oahu, Hawaii, died aged 14 on New Year's Day. Despite being listed as critically endangered the species is now considered extinct.
At least one person is killed and nearly 40 others are injured in a stampede at a football stadium in Madagascar.
Madagascar President Hery Rajaonarimampianina resigns from office in order to contest the November presidential election, as required by the Constitution. Senate president Riko Rakotovao becomes interim President of Madagascar until the January 2019 inauguration of a new president.
Opposition demonstrations in Antananarivo, Madagascar, turn violent. Prime Minister Olivier Mahafaly Solonandrasana says one died and seventeen were injured but opposition Parliamentarian Hanitra Razafimanantsoa, who supports ex-President Marc Ravalomanana, says two were shot dead and two babies at a nearby hospital killed by tear gas.
At least 29 people are dead and 22 are missing in the aftermath of a strong tropical cyclone striking Madagascar.