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Search results for Cephalopod

Evolution Jun 29, 2021

Diversity of tiny bobtail squid driven by ancient biogeographic events, finds new study

Bobtail and bottletail squids are small marine invertebrates that are easy to collect, reproduce quickly, and can be raised together in large numbers in laboratories, making them useful model animals for research. They're ...

Plants & Animals Jun 15, 2021

Human-generated noise can contribute to deplete Seagrass Posidonia populations

When exposed to human-made noise, seagrass posidonia reveals permanent severe lesions in their sensory organs that sense gravity, which threatens their survival. This is the main conclusion of a recent study of the Laboratory ...

Plants & Animals May 10, 2021

Fossil of ancient squid eating a crustacean while being eaten by an ancient shark

A team of researchers has discovered a fossil they are describing as a leftover fall event in which one creature was in the process of eating another creature that was not consumed. In their paper published in the Swiss Journal ...

Plants & Animals May 7, 2021

Who would win in a fight between an octopus and a seabird? Two marine biologists place their bets

If you're anything like us, you may have wondered if an octopus and a seabird would ever end up in a fight. Well they do, and it's a YouTube wormhole that can prove quite addictive.

Evolution May 6, 2021

Temperature explains why aquatic life more diverse near equator

The bulging, equator-belted midsection of Earth currently teems with a greater diversity of life than anywhere else—a biodiversity that generally wanes when moving from the tropics to the mid-latitudes and the mid-latitudes ...

Plants & Animals Apr 22, 2021

New species of dumbo octopus identified using minimally invasive techniques

A new species of deep-sea dwelling dumbo octopus called Grimpoteuthis imperator sp. nov. has been described using a combination of MRI, micro-CT and minimally invasive gene analysis rather than traditional dissection methods. ...

Paleontology & Fossils Apr 13, 2021

Ancient ammonoids' shell designs may have aided buoyancy control

Ammonoids, ancestors of today's octopus, squid and cuttlefish, bobbed and jetted their way through the oceans for around 340 million years beginning long before the age of the dinosaurs. If you look at the fossil shells of ...

Plants & Animals Apr 1, 2021

Whales dive deep for profitable prey

An international research team has investigated why dolphins and whales perform record-breaking dives to several kilometers deep. For the first time they were able to match hunting behavior to the prey present in the hunting ...

Plants & Animals Mar 25, 2021

Octopuses have two alternating sleep states, study shows

Octopuses are known to sleep and to change color while they do it. Now, a study publishing March 25 in the journal iScience finds that these color changes are characteristic of two major alternating sleep states: an "active ...

Evolution Mar 23, 2021

Cephalopods: Older than previously thought?

Possibly the oldest cephalopods in the Earth's history stem from the Avalon Peninsula in Newfoundland (Canada) discovered by scientists from Heidelberg University. The 522-million-year-old fossils could turn out to be the ...

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