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  • Bat Echolocation

    Bat Echolocation

    Data Point

    In this study, researchers tested whether bats change their behavior while hunting based on feedback from echolocation.

  • Natural Selection in an Outbreak

    Natural Selection in an Outbreak

    Scientist at Work

    (7 min 29 sec) This video brings us to the front lines of the 2013–2015 Ebola outbreak in west Africa and explains how scientists monitored the evolution of the virus by analyzing its genome.

  • Seeing In the New Year

    Seeing In the New Year

    Image of the Week

    Multi-color labeling of photoreceptor neurons in the developing visual system of the fruit fly (Drosophila melanogaster).

  • DNA Profiling Activity

    DNA Profiling Activity

    Activity

    This multi-part lesson is designed to give students a firm understanding of genetic profiling using short tandem repeats (STRs), which is a process used by forensics labs around the world. 

  • BiomeViewer

    BiomeViewer

    Apps and eBooks

    An interactive to explore biomes, climate, biodiversity, and human impacts across the globe.

  • Under the Hemiparasite

    Under the Hemiparasite

    Image of the Week

    Many of the 1400 or so species of mistletoes are hemiparasites—they obtain at least part of their nutrition from the host tree.

  • Ebola: Disease Detectives

    Ebola: Disease Detectives

    Activity

    In this classroom activity, students will analyze sequences of Ebola viruses isolated from patients in Sierra Leone during the Ebola outbreak of 2013–2016 to track the virus spread.

  • Designer Proteins

    Designer Proteins

    Image of the Week

    Scientists are custom-designing proteins, like these nanocages with many green fluorescent proteins attached

  • Sharklab

    Sharklab

    Image of the Week

    A team of scientists from The Bimini Biological Field Station collecting samples from a male tiger shark (Galeocerdo cuvier).

  • Middle School

    Middle School

    Collection

    A small selection of our multimedia resources that will enhance your teaching of middle school life and earth science classes. They include engaging, high-quality animation, hands-on activities,...

  • Genetic Mutations and Disease Interactive

    Genetic Mutations and Disease Interactive

    Click & Learn

    This interactive focuses on the roles of germline and somatic cell mutations in human disease. It supports the 2013 Holiday Lectures on Science, Medicine in the Genomic Era.

  • Dating Corn Domestication Using Carbon Isotopes

    Dating Corn Domestication Using Carbon Isotopes

    Data Point

    To study the change in diet as human populations changed lifestyles from hunter-gatherers to agriculturalists, scientists measured carbon isotopes in the collagen tissues of human skeletons from North America.

  • Relish the Cranberry

    Relish the Cranberry

    Image of the Week

    Most of the cranberries used for Thanksgiving dinner are “wet harvested” by flooding cranberry marshes.

  • Eat Your Vitamins

    Eat Your Vitamins

    Image of the Week

    Ascorbic acid, or Vitamin C, is an essential component of the human diet.

  • Genetically Modified Mosquitoes

    Genetically Modified Mosquitoes

    Scientist at Work

    (8 min 35 sec) Learn the process by which a line of genetically modified mosquitoes was engineered to reduce populations of Aedes aegypti mosquitoes in the wild.

  • Teeth of the Skin

    Teeth of the Skin

    Image of the Week

    The head of a newly-hatched catshark (Scyliorhinus canicula) imaged using 3D X-ray microscopy.

  • How Animals Use Sound to Communicate

    How Animals Use Sound to Communicate

    Click & Learn

    Using elephants, finches, bats, and moths, as case studies, explore different aspects of how animals use sound to communicate.

  • Spooky Sedge

    Spooky Sedge

    Image of the Week

    Oh the horror! A cross-section of the stem of yellow nut sedge plant (Cyperus esculentus)

  • Patterns of Zoonotic Disease

    Patterns of Zoonotic Disease

    Data Point

    In this study, scientists analyzed previously published data on terrestrial mammal zoonotic host species and the pathogens they carry to search for global patterns of zoonotic disease distribution.

  • A Model Microbe

    A Model Microbe

    Image of the Week

    Tetrahymena thermophila is a freshwater unicellular ciliated protozoan related to Paramecium.

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