Image of the Week

In this series

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  Image of the Week

  Coral Fluorescence

  Most corals contain proteins that emit light, or fluoresce, when light shines on them.
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  Image of the Week

  A Predator in the Plankton

  The comb jelly (Beroe cucumis) uses its large mouth and cilia-powered motor to prey upon members of the plankton family, including other ctenophores.
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  Image of the Week

  To Brine, Or Not To Brine?

  Soaking your Thanksgiving turkey in a salt solution (brine) alters the arrangement of muscle fiber protein molecules.
• 5

  

  Image of the Week

  Coloring the Past

  An electron micrograph of tightly-packed melanosomes in a 55.4-million-year-old fossil bird feather unearthed in Denmark.
• 9

  

  Image of the Week

  Reckless Growth

  The organization of cells in a healthy mouse intestine is lost in a growing tumor.
• 5

  

  Image of the Week

  Primate in a Pumpkin

  The Aye-Aye is a nocturnal lemur, a member of a group of primates that live only on the island of Madagascar. 
• 5

  

  Image of the Week

  Mozambique Mounds

  Termite mounds in central Mozambique appear as regularly spaced islands of dark-green vegetation in a sea of grassland. 
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  Image of the Week

  Helena With Cub

  A lioness relaxing with her cub in Gorongosa National Park, where scientists are studying the recovery of the lion population. 
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  Image of the Week

  Wait for Me!

  A remote trail camera captures a photo of an elephant calf trying to catch up to the rest of its family group in Gorongosa National Park.
• 6

  

  Image of the Week

  You Lookin' at Me?

  Waterbucks caught in the act as they eat their way in front of a trail camera in Mozambique, Africa.
• 8

  

  Image of the Week

  Cracking the Hardest Nut

  The Large Ground-Finch (Geospiza magnirostris) has the largest beak of all Darwin’s finches on the Galápagos Islands.
• 9

  

  Image of the Week

  What Makes Flowers Red?

  The petals of flowers get their vibrant colors from cells packed with pigments such as orange carotenoids and pink anthocyanins.