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Life & Evolution

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DON’T TEASE  Withholding a treat that a rainbow trout has come to expect can prompt what looks like a fish version of frustration. 

Sailfish are named for the sail-like fin on their backs, but they can also be characterized by their elongated bills.

By carrying sponges in their beaks while they hunt, dolphins may be able to sweep away much more sand from the ocean floor and scare up new types of food. Analysis of the animal's fatty acids support this idea.

  • Animals

    
    Wild Things

    Secrets of a sailfish attack

    The large, long-nosed sailfish use their rostrums more like a sword than a spear to attack prey.

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  • Plants

    
    Science Ticker

    Milkweed 'horns' may equal wins in reproduction battle

    Plants may be ripping a page right from bucks’ playbooks, developing hornlike weapons to improve their chances of reproduction.

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  • Microbes

    Say What?

    Osmotroph

    An organism that eats by osmosis, relying on nutrients diffusing into its body from a higher concentration in its environment.
  • Fungi

    Feature

    The name of the fungus

    A rebellion has broken out against the traditional way of naming species in the peculiar, shape-shifting world of fungi.
    It's Alive

    Fungal fight club

    Combat between fungal individuals is a bit like war between heaps of spaghetti.
  • Conservation

    
    Wild Things

    Cheetahs, but not wild dogs, manage to live with lions

    One conservation tenet says that cheetahs can’t survive when lions are around, but it’s wild dogs that disappeared in one lion-dense area of the Serengeti.

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  • Evolution

    
    Growth Curve

    Babies cry at night to prevent siblings, scientist suggests

    Babies who demand to be breastfed in the night might be delaying the birth of a sibling, scientist proposes.

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  • Ecology

    Reviews & Previews

    Do your bit for bumblebees

    The Xerces Society for Invertebrate Conservation and its partners have launched the Bumble Bee Watch website to track sightings. When you see a bee bumbling around, snap a photo.
  • Paleontology

    
    Science Ticker

    Early meat-eater may have led to larger plant-eaters

    The newly identified Eocasea martini may have set the stage for later, much larger animals to become plant-eaters.

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    Science Ticker

    Fish gill fossils gnaw at ideas of jaw evolution

    Bony fishes, not modern sharks, may provide a better understanding of the earliest jawed animals and the evolution of the jaw itself.

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  • Biophysics

  • Other

    
    Deleted Scenes

    The Sopranos with feathers

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