Search Results for: Bears

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6,727 results
  1. Archaeology

    Ancient Maya power brokers lived in neighborhoods, not just palaces

    Lidar discoveries and recent excavations are forcing archaeologists to rethink ancient Maya political structures.

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  2. Life

    Comb jellies have a bizarre nervous system unlike any other animal

    A 3-D map of the comb jelly “nerve net” reveals fused neurons that lack the space, or synapses, most neurons use to communicate. Did it evolve independently?

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  3. Archaeology

    Ancient human DNA was extracted from a 20,000-year-old deer tooth pendant

    Insights into Stone Age people’s lives may soon come from a new, nondestructive DNA extraction method.

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  4. Good with tools? You may be a cockatoo

    Editor in chief Nancy Shute talks about smart animals, from tool-using cockatoos to "self-aware" fish.

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  5. Climate

    Thawing permafrost may unleash industrial pollution across the Arctic

    As the frozen ground warms due to climate change, industrial pollutants could flow free from thousands of sites across the Arctic.

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  6. Animals

    Invasive yellow crazy ants create male ‘chimeras’ to reproduce

    Yellow crazy ants are first known species where chimerism is required in males: Each of their cells holds DNA from just one of two genetic lineages.

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  7. Humans

    This ancient Canaanite comb is engraved with a plea against lice

    The Canaanite comb bears the earliest known instance of a complete sentence written in a phonetic alphabet, researchers say.

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  8. Physics

    Superconductor research surges forward despite controversy over stunning claims

    After retractions from Ranga Dias’ group, high-pressure physicists are feeling the squeeze, fearing the controversy will tarnish other research.

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  9. Microbes

    Watch: Recent microbial discoveries are changing our view of life on Earth

    Videos capture the strange movements and predatory styles of protists — among the closest microbial cousins to multicellular life.

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  10. Anthropology

    Homo naledi may have dug cave graves and carved marks into cave walls

    Proposed discoveries of humanlike activities by these ancient, small-brained hominids have elicited skepticism from some researchers.

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  11. Math

    Here’s a peek into the mathematics of black holes

    The universe tells us slowly rotating black holes are stable. A nearly 1,000-page proof confirms it.

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  12. Life

    Orca moms baby their adult sons. That favoritism pays off — eventually

    By sharing fish with their adult sons, orca moms may skimp on nutrition, cutting their chances of more offspring but boosting the odds for grandwhales.

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