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This Oct. 2023 photo made available by the National Park Service shows Human footprints infilled with white gypsum sand. at the White Sands National Park in New Mexico. Fossil human footprints discovered in White Sands, New Mexico likely date back to between 21,000 and 23,000 years ago, according to two lines of scientific evidence published Thursday, Oct. 5, 2023. (NPS via AP)

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Further evidence points to footprints in New Mexico being the oldest sign of humans in Americas
By CHRISTINA LARSON - AP Science Writer
Thu,10/05/23-1:03PM , 102 Reads
New research confirms that fossil human footprints in New Mexico are likely the oldest direct evidence of human presence in the Americas, a finding that upends what many archaeologists thought they knew about when our ancestors arrived in the New World.
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A researcher holds a Coqui Guajon or Rock Frog (Eleutherodactylus cooki) at a tropical forest in Patillas, Puerto Rico on March 21, 2013. A study published Wednesday, Oct. 4, 2023, in the journal Nature has found that amphibians are the world's most threatened group of vertebrate species. (AP Photo/Ricardo Arduengo, File)

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Amphibians are the world's most vulnerable animals and threats are increasing
By CHRISTINA LARSON - AP Science Writer
Wed,10/04/23-10:01AM , 55 Reads
The world’s frogs, salamanders, newts and other amphibians remain in serious trouble.
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This photo provided by researchers shows a royal flycatcher bird in Las Cruces Biological Station in Coto Brus, Costa Rica in March 2018. Small farms with natural landscape features such as shade trees, hedgerows and tracts of intact forest provide a refuge for some tropical bird populations, according to an 18-year study in Costa Rica, published on Monday, Sept. 4, 2023, in the journal Proceedings of the National Academy of Sciences. (J. Nicholas Hendershot via AP)

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Farms with natural landscape features provide sanctuary for some Costa Rica rainforest birds
By CHRISTINA LARSON - AP Science Writer
Mon,09/04/23-2:31PM , 270 Reads
Small farms with natural landscape features such as shade trees, hedgerows and tracts of intact forest provide a refuge for some tropical bird populations, according to an 18-year study in Costa Rica.
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This 2022 image from video provided by MBARI shows a female pearl octopus (Muusoctopus robustus) brooding her eggs at the "octopus garden," near the Davidson Seamount off the California coast at a depth of approximately 3,200 meters (10,500 feet). Most octopuses lead solitary lives. So scientists were startled to find thousands of them huddled together, protecting their eggs at the bottom of the ocean. Research published Wednesday, Aug. 23, 2023, in Science Advance shows heat seeping up from the base of an extinct underwater volcano helps their eggs hatch faster. (MBARI via AP)

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Deep-sea 'hot tubs' help octopus moms hatch their eggs faster
By CHRISTINA LARSON - AP Science Writer
Wed,08/23/23-2:22PM , 152 Reads
WASHINGTON (AP) — Most octopuses lead solitary lives. So scientists were startled to find thousands of octopus huddled together, protecting their eggs at the bottom of the ocean off the central California coast.
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