Sea urchins have five teeth, each held by a separate jaw in a circular arrangement at the center of their spiked, spherical bodies. Now, researchers have discovered how the teeth of the pink sea urchin are specially equipped to sharpen themselves.
Read moreA doctoral student has found a way to view the life of plants and animals in murky waters – by using a lens of freshwater.
Read moreA new study found that the larvae of haddock, a commercially important type of cod, have a magnetic compass to find their way at sea. The findings showed that haddock larvae orient toward the northwest using Earth's magnetic field.
Read moreWhen it comes to feeding, corals have a few tricks up their sleeve. Most of their nutrients come from microscopic algae living inside of them, but if those algae aren't creating enough sustenance, corals can use their tentacles to grab and eat tiny prey swimming nearby.
Read moreScientists compared the growth and body condition of one species of shark in two different environments. They found larger shark pups on degraded reefs grow less and perform worse than smaller pups on pristine reefs. Human-induced stressors, including climate change, put shark populations at risk — they may not be able to adapt fast enough to keep pace with the changes that are happening in their environment.
Read moreMost of the pups born in an elephant seal colony in California over a span of five decades were produced by a relatively small number of long-lived 'supermoms,' according to a new study.
Read moreTechnological advances are allowing commercial fishing fleets to double their fishing power every 35 years and put even more pressure on dwindling fish stocks, new research has found.
Read moreResearchers analyzed fish bones excavated from the Early Neolithic Jiahu site in Henan Province, China. By comparing the body-length distributions and species-composition ratios of the bones with findings from East Asian sites with present aquaculture, the researchers provide evidence of managed carp aquaculture at Jiahu dating back to 6200-5700 BC.
Read moreScientists discover coral pass beneficial algal symbionts to offspring to help them cope with rising ocean temperatures. The process occurs during reproduction sans nuclear DNA. It's the first time this has been observed.
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Scientists obtained a total of 733 pathogen isolates from 171 individual wild Bottlenose dolphins in Florida and found that the overall prevalence of resistance to at least one antibiotic for the 733 isolates was 88.2%. Resistance was highest to erythromycin, followed by ampicillin. It is likely that these isolates from dolphins originated from a source where antibiotics are regularly used, potentially entering the marine environment through human activities or discharges from terrestrial sources.