In the permanent twilight of the mesopelagic, a silent predator hunts.
The enigmatic giant squid is rarely observed in its natural habitat. In the first videos of their kind, unveiled in 2021, marine scientists caught its hunting behavior in the wild – revealing for the first time how these monsters of the deep stalk and attack their prey.Although the crushing pressures and darkness of the oceanic depths are hostile to us air-breathing humans, we've slowly but surely been learning more about them, thanks to the wonders of robotic technology.
For giant squid, the bright lights mounted on underwater vehicles can be uncomfortable for their sensitive, low-light eyes, which can grow to the size of dinner plates; the sound and vibration can also scare off more mobile animals. And, of course, bringing giant squid to the surface won't record their behavior in their natural environment.
That's why a team of researchers led by Nathan Robinson of the Oceanographic Foundation in Spain devised a different solution: a passive deep-sea platform, equipped with a camera. Because giant squid eyes are optimized to see shorter-wavelength blue light, they used longer-wavelength red lighting that won't annoy them, in order to see the animals on video.
Finally, they added bait: a fake jellyfish, called E-jelly, equipped with lights that mimic the blue flashing bioluminescence emitted by an atolla jellyfish in distress. Although giant squid aren't known to eat jellyfish specifically, they may be attracted to the distress lights of these atolla jellyfish – they might mean that the jellyfish is under attack by something the squidAll that remained, then, was to wait.
Norge Siste Nytt, Norge Overskrifter
Similar News:Du kan også lese nyheter som ligner på denne som vi har samlet inn fra andre nyhetskilder.
Southwest pilots become first mother-daughter duo to fly together, fulfilling lifelong dreamTwo Colorado pilots made their dream come true by becoming the first mother-daughter duo to fly together aboard an a Southwest Airlines flight earlier this month, but that's not where their story starts. annetrujillo7 reports:
Les mer »
First Lady Olena Zelenska Is All About Ukraine, Stylist SaysAs Ukraine’s First Lady Olena Zelenska has taken on a more public role in recent weeks, her initiatives as well as her personal style are in the spotlight.
Les mer »
Monkeypox: First deaths outside Africa in Brazil and SpainBrazil and Spain report fatalities from the virus, but most infections are mild and overall risk is low.
Les mer »
First on CNN: Louisiana prosecutor in Ronald Greene case gets case file from federal investigatorsThe local Louisiana district attorney with jurisdiction over the town where Ronald Greene died following an interaction with state troopers said he has now received the federal case file and has begun reviewing their investigative reports.
Les mer »
Spain reports first monkeypox-related death in EuropeSpain reported its first monkeypox-related death on Friday, in what is thought to be Europe's first death from the disease and only the second outside of Africa in the current outbreak. According to a World Health Organization report from July 22, only five deaths had been reported worldwide, all in the African region. In its latest report, the Spanish Health Ministry said 4,298 cases had been confirmed in the country.
Les mer »
Angels assign first-round draft pick Zach Neto to Double-A to begin pro careerFive days after signing the former Campbell University shortstop, they assign him to Rocket City. He’ll be joined there by first baseman Sonny DiChiara, the Angels’ fifth-round pick out of Auburn.…
Les mer »