Fresh water plankton under stroboscopic flash light. Mites (Hydrachnidiae), Ostracodae and Cladocera swimming.

The world's largest study of plankton show its genetic diversity. 

A penguin dives from an ice block in front of Brazil's Comandante Ferraz base, in Antarctica on March 10, 2014.

The Larsen B ice shelf is already disintegrating, and will likely be no more by the year 2020.

An overweight Chinese student plays a game on his mobile phone as he waits for a medical check before training at a camp held for overweight children on July 14, 2014 in Beijing, China.

Research found that even a little screen time is a factor in children's weights.

Members of the Women In Peacebuilding Network ( WIPNET)are sit on May 8, 2015 in Monrovia. If there are no new infections in the next 48 hours, the World Health Organization (WHO) will declare Liberia 'Ebola-free' on May 9, 2015, 42 days -- or twice the incubation period of the virus -- after the last case.

Contingency fund formed in response to strong demand placed on health agency.

Children participate in a peaceful protest on West Florissant Ave. in Ferguson, Missouri on August 19, 2014.

Research shows that suicide among white children under 12 has lessened in comparison to black children.