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    Explore " topstory" with insightful episodes like "Natural Selections: Raven vs. Crow, what's the difference?", "Natural Selections: "Couch potato" bass evolving in response to human predation", "Natural Selections: Get to know your closet nemesis, the clothes moth", "Natural Selections: For cats, the comfort zone is shaped like a box" and "Natural Selections: How nature journals put the history in natural history" from podcasts like ""Natural Selections", "Natural Selections", "Natural Selections", "Natural Selections" and "Natural Selections"" and more!

    Episodes (100)

    Natural Selections: "Couch potato" bass evolving in response to human predation

    Natural Selections: "Couch potato" bass evolving in response to human predation
    (Oct 21, 2021) The pressure to keep billions of humans fed can have a transformative impact on amimal populations. Overharvesting that targets the largest animals can result in reduction of the average size of species, as seen in Caribbean conch snails. And sport-fishing pressure on large mouth bass can winnow out the most agressive in the gene pool, resulting in a "lazier," more passive remnant population. Martha Foley and Curt Stager talk about the human factor in animal evolution.
    Natural Selections
    en-usOctober 21, 2021
    science
    evolution
    nature
    fishing
    predation

    Natural Selections: How nature journals put the history in natural history

    Natural Selections: How nature journals put the history in natural history
    (Sep 30, 2021) Martha Foley has never succeeded in keeping a nature journal long-term, but Curt Stager finds them invaluable in his work. He records his observations on paper, but also finds great data through researching the journals of past observers, from Samuel de Champlain to Thomas Jefferson, to ordinary little-known North Country folk. His hint - always put it on paper. Whatever became of all that stuff on your floppy diskettes?
    Natural Selections
    en-usSeptember 30, 2021
    climate change
    history
    nature
    observation
    topstory

    More fish: good for the flowers, bad for the snakes

    More fish: good for the flowers, bad for the snakes
    (Sep 9, 2021) The complex web of species interaction is full of odd associations. Stocking a lake with fish cuts down on dragonflies, which helps pollinators, which helps the flowers bloom. Or it can cut down on amphibians such as newts, which is bad for garter snakes. Invasive flowering purple loosestrife is good for insects and birds that feed on them, but hard on plankton, which is at the bottom of the food chain for everything. Martha Foley and Curt Stager look an unintended consequences of human actions in nature.
    Natural Selections
    en-usSeptember 09, 2021
    nature
    interdependence
    topstory
    natselect

    Really, really big bugs (and some tiny ones, too)

    Really, really big bugs (and some tiny ones, too)
    (Sep 2, 2021) Martha Foley? - not a fan of bugs. And Curt Stager took a course on them to steady his own reactions. The Natural Selections team looks at the outliers on the spectrum, the largest and smallest of critters with too many legs. New Zealand's weta makes a real handful. The fairy fly is nearly invisible. Some prehistoric dragonflies were big enough to make off with the cat.
    Natural Selections
    en-usSeptember 02, 2021
    nature
    insects
    topstory
    natselect

    Natural Selections: Why pigeons feel at home in the city

    Natural Selections: Why pigeons feel at home in the city
    (Aug 19, 2021) The ubiquitous bird of cities and towns was designed for a different environment. The pigeon's distinctive style of flight is adapted for maneuverability in tight places - near vertical takeoffs and quick changes of direction. This adaptation to cliff and mountainside environments serves them well among our urban cliff dwellings. Curt Stager and Martha Foley discuss.
    Natural Selections
    en-usAugust 19, 2021
    nature
    birds
    topstory
    natselect

    Natural Selections: Why manatees are related to elephants, and whales are related to deer

    Natural Selections: Why manatees are related to elephants, and whales are related to deer
    (Jul 29, 2021) Animals that resemble each other may not be closely related. Sometimes the setting shapes their bodies more than their ancestry. Manatees may look like whales or walruses, but that is only because they adapted to the marine environment in a similar way. Martha Foley and Curt stager talk about convergent evolution.
    Natural Selections
    en-usJuly 29, 2021
    evolution
    nature
    topstory
    natselect
    convergent evolution
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