Email Print Share

All Images


Research News

Benefits of Sexual Reproduction Lie in Defense Against Parasites

Photo of dabbling ducks foraging in the shallow region of Lake Alexandrina, New Zealand.

Dabbling ducks forage in the shallow region of Lake Alexandrina, New Zealand. Parasite larvae in snails are ingested by ducks, where the parasites complete their life-cycle.

Credit: Jukka Jokela, Eawag/ETH-Zurich


Download the high-resolution JPG version of the image. (1.3 MB)

Use your mouse to right-click (Mac users may need to Ctrl-click) the link above and choose the option that will save the file or target to your computer.

Photo of Indiana University student Kayla King dissecting snails under the microscope.

Indiana University graduate student Kayla King dissects snails under the microscope.

Credit: Kayla King, Indiana University


Download the high-resolution JPG version of the image. (1.4 MB)

Use your mouse to right-click (Mac users may need to Ctrl-click) the link above and choose the option that will save the file or target to your computer.

Photo of Curtis Lively and Jukka Jokela diving to collect snails in Lake Alexandrina, New Zealand.

Curtis Lively and Jukka Jokela dive to collect snails, Potamopyrgus antipodarum, in Lake Alexandrina, New Zealand.

Credit: Kirsten Klappert, Eawag/ETH-Zurich


Download the high-resolution JPG version of the image. (3.3 MB)

Use your mouse to right-click (Mac users may need to Ctrl-click) the link above and choose the option that will save the file or target to your computer.

Photo shows an infected snail (top) and an uninfected snail (bottom) removed from their shells.

Potamopyrgus antipodarum is a freshwater snail that lives in New Zealand's lakes and streams. Shown are an infected snail (top) and an uninfected snail (bottom) after being removed from their shells. The spots visible on the infected snail are parasite cysts.

Credit: Gabe Harp, Indiana University


Download the high-resolution JPG version of the image. (1.2 MB)

Use your mouse to right-click (Mac users may need to Ctrl-click) the link above and choose the option that will save the file or target to your computer.