Search Results for: Algae
1,367 results
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Paleontology520-million-year-old animal fossils might not be animals after all
Newly described fossils of Protomelission gatehousei suggest that the species, once thought to be the oldest example of bryozoans, is actually a type of colony-forming algae.
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MicrobesSome ‘friendly’ bacteria backstab their algal pals. Now we know why
The friendly relationship between Emiliana huxleyi and Roseobacter turns deadly when the bacteria get a whiff of the algae’s aging-related chemicals.
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PaleontologyGlowing spider fossils may exist thanks to tiny algae’s goo
Analyzing 22-million-year-old spider fossils from France revealed that they were covered in a tarry black substance that fluoresces.
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LifeLike bees of the sea, crustaceans ‘pollinate’ seaweed
Crustaceans shuttle around red algae’s sex cells, helping the seaweed reproduce in a manner remarkably similar to flower pollination.
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ClimateClimate change could turn some blue lakes to green or brown
As temperatures rise, more than 1 in 10 of the world’s blue lakes could change color, reflecting holistic shifts in lake ecosystems.
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OceansHow some sunscreens damage coral reefs
In lab experiments, sea anemones and coral turned oxybenzone into a toxin activated by light. But helpful algae may provide a layer of protection.
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MicrobesScientists have found the first known microbes that can eat only viruses
Lab experiments show that Halteria ciliates can chow down solely on viruses. Whether these “virovores” do the same in the wild is unclear.
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AnimalsWhale sharks may be the world’s largest omnivores
An analysis of the sharks’ skin shows that the animals eat and digest algae.
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Planetary ScienceMethylated gases could be an unambiguous indicator of alien life
On Earth, methylated gases are produced by organisms cleaning up their environment — and by little else. The same might be true on some exoplanets.
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ClimateReplacing some meat with microbial protein could help fight climate change
Just a 20 percent substitution could cut deforestation rates and land-use CO2 emissions by more than half by 2050, a new study suggests.
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LifeA glimpse inside a gecko’s hand won the 2022 Nikon Small World photo contest
The annual competition highlights microscopic images that bring the smallest details from science and nature to life.