Sentences with word «cephalopod»
A critter - packed night dive at Sapokreng was one of the highlights on this trip, where we found many species of cephalopods such as algae octopus, pygmy squid, and coconut octopus.
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«Conversely, increases in cephalopod populations could benefit marine predators which are reliant on them for food, as well as human communities reliant on them as a fisheries resource.»
This is true not just for humans and other vertebrates but for squids and other cephalopods as well.
Heavy reliance on RNA editing, however it first evolved, practically would have guaranteed the need for cephalopod DNA to remain fairly stable over millennia.
As cephalopods evolved, some ganglia became large and complex, and new ones were added.
This type of model could work for other fisheries — such as a squid fishery off the coast of South Africa — that are susceptible to the vagaries of currents, says Jean - Paul Robin, an expert on cephalopod fisheries at the University of Caen, France.
In 1968, two researchers from Fort Hays Kansas State College studying cephalopods from the Niobrara Formation compared the specimen with a cuttlefish, based primarily on its textural similarities to a cuttlebone — the unique internal shell of cuttlefish.
The interior surfaces of these glass sculptures are rubbed with Cephalopod ink — a product of the invertebrate's nervous system that is released in order to veil their movements or to generate a pseudomorphic cloud — creating an uneven and discolored projection of light from these seemingly polished forms.
To solve this problem, researchers looked for data that would allow them to calculate how much fishers catch over a given time period — a more reliable metric of actual cephalopod population numbers.
Was I serious when I suggested that people might someday become more like cephalopods?
Inspired by cephalopods like octopuses and cuttlefish, which change their skin textures for camouflage, researchers fabricated a stretchy material that inflates into various 3 - D shapes and flattens back out.
The game tasks the player to recruit the best squids for the group in order to save the world of cephalopods from the invasion of crabs.
Cuttlefish, cephalopods known for their ability to alter their skin color, have complex and competitive courtship rituals.
So, inevitably, the researchers at Monash will produce just another large body of comparative cognitive studies — humans are better than cephalopods at crossword puzzles, no photodiodes can play chess but many Belgians can... that sort of thing — all meretriciously tricked out in the useless patois of Integrated Information Theory.
With the help of CRISPR / Cas9, Edsinger is hoping to establish one or more cephalopod organisms that can be used to study motion, camouflage and neural systems.
The blue - ringed octopus's brawny approach is unique — all other cephalopods use sacs of pigment, called chromatophores, to change their colors.
Southern sand octopus is first cephalopod found to build underwater hideout by burrowing through quicksand and daubing the walls with mucus
After your students have learned about cephalopods through short video clips, their interactive notebook and the PowerPoint, they will dissect a bait squid.
The star of this video, Octopus vulgaris, is one of several cephalopod species capable of morphing, including the mimic octopus and the giant Australian cuttlefish.
Although clustered together in most animals, including other mollusks, they are scattered in snippets in the octopus, presumably enabling the evolution of the versatile cephalopod body plan.
In addition, blastoids, bryozoans, corals, crinoids, as well as many kinds of brachiopods, snails, clams, and cephalopods appeared for the first time in the geologic record in tropical Ordovician environments.
But when Ross, Academy Fellow Dr. Roy Caldwell of U.C. Berkeley, and Academy Research Associate Dr. Christine Huffard of Monterey Bay Aquarium Research Institute began studying captive larger Pacific striped octopuses nearly 35 years later in 2012, they confirmed Rodaniche's original observations, reigniting the intrigue of cephalopod biologists around the world.
Octopuses, cuttlefish and squid belong to a class of marine mollusks called cephalopods, along with now extinct creatures called ammonites and belemnites.
In 2015 University of Chicago neurobiologist Clifton Ragsdale and his team published the first cephalopod genome, that of an octopus.
You could imagine that it's an alternative engine for cephalopod evolution.»
Nonetheless, we now know that octopuses are the most intelligent invertebrates on the planet — as demonstrated by real science as well as viral videos of whip - smart cephalopods escaping from jars.
Scientists have noticed a growth in cephalopod catches around the world since the late 1990s.
Recent studies have detected the presence of significant levels of dioxins in the commercial shrimp Aristeus antennatus [253] and significant levels of persistent organic pollutants in mesopelagic and bathypelagic cephalopods [254].
If cephalopods someday evolve to become intelligent creatures with civilizations, what might they do with their ability to morph?
One respected cephalopod expert isn't convinced.
But many cephalopods live less than a year, and the giant Pacific octopus, which has one of the longest documented life spans, survives for only four years.
«The octopus genome makes studies of cephalopod traits much more tractable, and now represents an important point on the tree of life for comparative evolutionary studies,» said Ragsdale, an associate professor in neurobiology and organismal biology and anatomy at the University of Chicago.
Here is a look at some of the fossil types Mary Anning discovers in Remarkable Creatures: Ammonites are distant relatives of modern - day cephalopods such as octopus, squid, or chambered nautilus, which they most resemble because of their whorled shell.
«They do good work and ask interesting questions,» says cephalopod researcher John Cigliano of Cedar Crest College in Allentown, Pennsylvania.
Cephalopod researchers love to share the latest stories about clever octopuses or emotional cuttlefish — stories that often involve daredevil escapes from aquarium tanks.
The study involved a squid species, two octopus species and a cuttlefish species, all coleoids, or shell-less cephalopods.
An innovator in cephalopod research, Jennifer Mather of the University of Lethbridge in Alberta, along with Anderson, did the first studies of this behavior, and it has now been investigated in detail.
And along with the threat of continued fishing by humans, Doubleday notes that many cephalopods are cannibals.
Adding weight to this theory is evidence that nautiluses, a closely related shelled cephalopod known to be less intelligent, don't possess the same editing capabilities.
In a tale of intrigue and derring - do, the crafty cephalopod slipped out of his enclosure and found his way to freedom.
«Octopus genome reveals cephalopod secrets.»
«The extreme nature of the size dimorphism is staggering,» says cephalopod specialist John Forsythe of the University of Texas Marine Biomedical Institute in Galveston.
The nautilus is the most primitive cephalopod in existence, a group that includes the most complex squid and octopus.
In Squid Empire, Danna Staaf turns esoteric knowledge about the evolution of cephalopods into a page - turning read for all audiences.
Today is the last cruise of the year for the ROV collection of deep water cephalopods for both public display and research; the forecast is for calm seas and our quarry is the Flapjack octopus (Opisthotheusis sp).
Now, researchers reporting in the Cell Press journal Current Biology on April 20 have found that vampire squid differ from all other living coleoid cephalopods in their reproductive strategy as well.
A funny little diversion filled with charm, and in a world of brown shooters it's a wonderful reminder that game's can be just about anything, including a suit - wearing cephalopod that may or may not be viewed by the rest of the world as a drunken, fumbling mad - man with a serious speech impediment.
SMART EDITS RNA editing may have made cuttlefish (shown) and related cephalopods intelligent, but has slowed their evolution, new research suggests.