Scientist and whale shark (Rhincodon typus) feeding at the surface on zooplankton, mouth open, known as ram feeding, Yum Balam Marine Protected Area, Quintana Roo, Mexico, North America

Biologist taking skin sample from a whale shark to determine what plankton types the animal has been feeding on, Yum Balam Marine Protected Area, Quintana Roo, Mexico, North America

Scientist free diving to make a photo identification of an individual manta ray (Manta birostris), Yum Balam Marine Protected Area, Quintana Roo, Mexico, North America

Caucasian woman watering garden in greenhouse

Caucasian scientist using digital tablet in greenhouse

Caucasian scientist using digital tablet in greenhouse

Mixed race scientist dropping leaf in test tube

Caucasian woman posing in greenhouse

Caucasian scientist using digital tablet in greenhouse

Caucasian woman gardening in greenhouse

Memorial plaque, Albert Einstein, Ulm, Baden-Wuerttemberg, Germany, Europe

Albert Einstein's theory of relativity in the Science Museum in Canberra, Australia

The Berlin Palace or Humboldt Forum along the Spree river, Unter den Linden, Berlin, Germany, Europe

Humboldt University with Alexander von Humboldt statue, Unter den Linden, Berlin, Germany, Europe

River promenade and Spree terraces at the new Berlin Palace or Humboldt Forum, Unter den Linden, Berlin, Germany, Europe

The critically endangered Indri indri photographed in the Mitsinjo natural reserve. This wild individual was feed by leaves to a scientist that was monitoring this group. Madagascar Finalist at Montier en der et à Namur festival 2018.