Search Results for: Phylogenetics

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97 results
  1. Animals

    These huntsman spiders do something weird: live together as a big, happy family

    Five unusual species of spider moms let youngsters live at home way past the cute waddling baby phase.

  2. A reader asks about coronavirus mutations

  3. Paleontology

    This ancient dinosaur was no bigger than a hummingbird

    The skull of one of these Mesozoic Era birds — the tiniest yet known — was discovered encased in a chunk of amber originally found in Myanmar.

  4. Ecosystems

    Why some insect eggs are spherical while others look like hot dogs

    Analyzing a new database of insect eggs’ sizes and shapes suggests that where eggs are laid helps explain some of their diversity of forms.

  5. Paleontology

    New fossils are redefining what makes a dinosaur

    While some researchers question what characteristics define the dinosaurs, others are uprooting the dino family tree altogether.

  6. Paleontology

    Readers debate dinosaur designation and more

    Readers had questions about the dino family tree and Venus' habitability.

  7. Life

    Defining ‘species’ is a fuzzy art

    Here's why scientists still don't agree on what a species is.

  8. Genetics

    HIV came to NYC at least a decade before virus ID’d

    DNA analysis of early viral strains tracks U.S. debut to early ’70s

  9. Animals

    Bacteria make male lacewings disappear

    Scientists have tracked down why some green lacewings in Japan produce only female offspring: Bacteria kill off all the males early in life.

  10. Animals

    Cuckoos may have a long-lasting impact on other birds

    Some birds that don’t have to worry about parasites like cuckoos reject eggs that aren’t their own. It might be a legacy of long-ago parasitism.

  11. Animals

    Sing a song of bird phylogeny

    A new study challenges assumptions about birdsong, finding that the majority of songbird species have female singers.

  12. Anthropology

    Little Red Riding Hood gets an evolutionary makeover

    A statistical analysis attempts to track the rise of several widespread folktales.