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Oldest DNA sequences reveal how mammoths evolved

Analysis of ancient DNA sequences recovered from mammoth teeth reveal North American mammoths were descended from two earlier mammoth lineages

Healthy oceans need healthy soundscapes, say marine scientists

A global team of researchers has documented the pervasive impacts of noise on marine animals and ecosystems and identified actions to return to the soundtrack of the healthy ocean

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Noncoding RNA has surprising effects on immune response and sepsis, study finds

A long noncoding RNA regulates the expression of inflammatory genes and has a surprising effect on vulnerability to septic shock in mice

Study of flowers with two types of anthers solves mystery that baffled Darwin

Some flowers use a clever strategy to ensure effective pollination by bees, doling out pollen gradually from two different sets of anthers

New analysis highlights importance of groundwater discharge into oceans

A global assessment of the impact of groundwater on ocean chemistry is important for understanding the weathering of rocks and its effects on climate

As The California Sea Lion Population Got Bigger, So Did Male Sea Lions

Unlike other marine mammals, male California sea lions have gotten bigger over the past 50 years as their population has grown

Genome Of Famed Sled Dog Balto Reveals Genetic Adaptations Of Working Dogs

Still a good boy nearly 100 years after historic sled run, Balto has now helped scientists explore the genetics of working dogs and demonstrate the power of comparative genomics

Elephant Seals Drift Off To Sleep While Diving Far Below The Ocean Surface

Brainwave patterns show elephant seals take short naps while holding their breath on deep dives, averaging just 2 hours of sleep per day while at sea

Study Reveals The Molecular Origin Of The Genetic Disease Cystinosis

New understanding of how the transporter protein cystinosin functions may lead to better treatments for a devastating genetic disease

Record Of Antarctic Ice Sheet Response To Climate Cycles Found In Rock Samples

The effects of global climate cycles on Southern Ocean temperatures drove cycles of melting and freezing in the East Antarctic Ice Sheet every few thousand years, according to a new study

New Study Shows Transmission Of Epigenetic Memory Across Multiple Generations

Changing the epigenetic marks on chromosomes leads to altered gene expression in offspring and in grandoffspring, demonstrating ‘transgenerational epigenetic inheritance’

New Study Confirms ‘Rippled Sheet’ Protein Structure Predicted In 1953

UCSC scientists reported three crystal structures of periodic rippled beta sheets, a novel protein structure with potential applications in biomedicine and materials science

JWST Makes First Unequivocal Detection Of Carbon Dioxide In An Exoplanet Atmosphere

The James Webb Space Telescope is helping astronomers characterize the atmospheres of planets very different from those in our solar system

Data From Elephant Seals Reveal New Features Of Marine Heatwave ‘The Blob’

Instruments carried by migrating elephant seals measured deep warm-water anomalies that lasted much longer than the surface warming

Narwhals Show Physiological Disruption In Response To Seismic Survey Ship Noise

Scientists deployed monitoring devices on narwhals to record heart rates, breathing, and diving behavior during seismic air gun pulses from a ship in the fjords of Greenland

Destruction And Recovery Of Kelp Forests Driven By Changes In Sea Urchin Behavior

A long-term study of kelp forest dynamics on California’s Central Coast highlights the critical role of sea urchin behavior, not just the size of the urchin population

Study Finds Chaos Is More Common In Ecological Systems Than Previously Thought

The idea that chaos is rare in natural populations may be due to methodological and data limitations, rather than the inherent stability of ecosystems

Study Shows Mangrove And Reef Restoration Yield Positive Returns On Investment For Flood Protection

A robust analysis demonstrates that nature-based solutions to reduce the damage caused by coastal flooding are cost-effective

100,000-Year-Old Polar Bear Genome Reveals Ancient Hybridization With Brown Bears

Study finds all brown bears today have some polar bear ancestry due to genetic admixture that occurred during a warm interglacial period more than 100,000 years ago

Hunting In Darkness, Elephant Seals Use Sensitive Whiskers To Find Prey

Researchers used miniature video cameras to study how free-ranging elephant seals use their whiskers to track down prey in the darkness of the deep ocean