Uncategorized

  1. Ecosystems

    Spread of nonnative fish mirrors human commerce

    Invasions of foreign freshwater fish are more common in areas with relatively high economic activity, suggesting that humans are a part of the problem.

    By Patrick Barry
  2. Animals

    Whales Drink Sounds: Hearing may use an ancient path

    Sounds can travel to a whale's ears through its throat, an acoustic pathway that might be ancient in the whale lineage.

    By Rachel Ehrenberg

  3. 19923

    I have heard that whales evolved millions of years ago into their present form, including their very large brains. We humans must be relatively recent in terms of our brain structures. Are there data concerning evolutionary development in whales? Matthew KabriskyDayton, Ohio “Learning to Listen: How some vertebrates evolved biological sonar” (SN: 5/14/05, p.