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Page 262 - மீன் வளர்ப்பு உள்கட்டமைப்பு வளர்ச்சி நிதி News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Bloodsucking Fish May Not Be the Vertebrate Ancestor We Thought

Photo: Miguel Riopa/AFP (Getty Images) Derpy from the side and hellish from below, the lamprey is the bane of the Great Lakes fisheries industry. A jawless, bloodsucking fish, the lamprey is often considered an ancestral early vertebrate for its rudimentary morphology and its larval life stage. Now, a team of researchers has authored a new study about fossilized lamprey larvae from the Devonian Period that they say shows lamprey evolution occurred differently than previously thought. This would mean we’d need to change our vertebrate origin story. Advertisement The researchers’ paper was published on Wednesday in the journal Nature. Their argument hinges on the lamprey life cycle. Modern lamprey larvae, called ammocoetes, are blind filter-feeders, which later transform into their noodly, predatory adult selves. Biologists and paleontologists alike have seen that ammocoete larval stage as a relic of early vertebrate evolution, and a sign that lamprey could be relied on as a liv

Decision on AGL gas hub at Crib Point looms as unlikely alliance campaigns against the proposal

Groups opposed to a controversial floating gas terminal near an internationally-recognised wetland in Western Port are vowing to fight on even if the Victorian government approves the project.

Zebra mussels found in aquarium plant stock

Research and Markets: EU Frozen Fish and Seafood Market Analysis, Forecast, Size, Trends and Insights Report 2021

Nearly 3 8 million fish killed along Texas Coast during winter storm

Red tide season usually lasts from October to around February, but the current red tide has stayed along the coast for around 10 months, killing massive amounts of fish as well as sea turtles, manatees and a whale shark swimming in the area. Photo by Joe Raedle/Getty Images Texas – Millions of fish along the Texas Coast were killed during the winter storm, according to the Texas and Wildlife Department. An estimated minimum of 3.8 million fish were killed during the Feb. 2021 freeze event. According to the Texas and Wildlife Department, the massive fish kill consisted of at least 61 species. Non-recreational species contributed to 91% of the total mortality in numbers of fish. This includes species like Silver Perch, Hardhead Catfish, Pinfish, Bay Anchovy and Striped Mullet.

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