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.

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  2. A reader asks about coronavirus mutations

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  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.

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  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.

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  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.

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  6. Paleontology

    Readers debate dinosaur designation and more

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

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  7. Life

    Defining ‘species’ is a fuzzy art

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

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  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

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  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.

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  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.

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  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.

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  12. Anthropology

    Little Red Riding Hood gets an evolutionary makeover

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

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