Octopuses can solve complex puzzles and show a preference for different individuals, but whether they, and other animals and invertebrates, have emotions is being hotly debated and could shake up humans' moral decision-making, ...
Plants & Animals
Mar 24, 2022
10
2878
While cuttlefish wearing glasses is an unexpected sight, a University of Minnesota-led research team built an underwater theater and equipped the cephalopods with specialized 3-D glasses to investigate how cuttlefish determine ...
Plants & Animals
Jan 8, 2020
8
460
An international team of scientists has sequenced the genome of an octopus, bringing researchers closer to discovering the genes involved in the creature's unusual biology, including its ability to change skin color and texture ...
Plants & Animals
Aug 12, 2015
0
1587
A 480-million-year-old relative of the lobster, cockroach and tarantula was a sea monster which snared food with spine-covered protrusions on its head, researchers said Wednesday.
Archaeology
Mar 11, 2015
1
2223
Ancient multicellular fossils long thought to be ancestors of early marine life are remnants of land-dwelling lichen or other microbial colonies, says University of Oregon scientist Gregory Retallack, who has been studying ...
Paleontology & Fossils
Dec 12, 2012
3
0
The origin of the exquisitely complex vertebrate brain is somewhat mysterious. "In terms of evolution, it basically pops up out of nowhere. You don't see anything anatomically like it in other animals," says Ariel Pani, an ...
Evolution
Mar 14, 2012
2
0
Paleontologists have discovered that a group of remarkable ancient sea creatures existed for much longer and grew to much larger sizes than previously thought, thanks to extraordinarily well-preserved fossils discovered in ...
Archaeology
May 25, 2011
0
1
(PhysOrg.com) -- Researchers at The University of Texas at Arlington have found the first solid evidence of horizontal DNA transfer, the movement of genetic material among non-mating species, between parasitic invertebrates ...
Biotechnology
May 3, 2010
3
1
Many longtime sailors have been mesmerized by the dazzling displays of green light often seen below the ocean surface in tropical seas. Now researchers at Scripps Institution of Oceanography at UC San Diego have uncovered ...
Other
Apr 1, 2009
0
0
Fish and invertebrate animals are far more affected by warmer and more acidic seawater than was previously known. This is the conclusion of a study co-led by NIOZ marine biologist Katharina Alter, based on a new analysis ...
Plants & Animals
Apr 9, 2024
0
91
An invertebrate is an animal without a backbone. The group includes 97% of all animal species – all animals except those in the chordate subphylum Vertebrata (fish, amphibians, reptiles, birds, and mammals).
Invertebrates form a paraphyletic group. Given a common multicellular, eukaryotic ancestor, all contained phyla are invertebrates along with two of the three subphyla in Phylum Chordata: Tunicata and Cephalochordata. These two, plus all the other known invertebrates, have only one cluster of Hox genes, while the vertebrates have duplicated their original cluster more than once.
Within palaeozoology and palaeobiology, invertebrates are often studied within the fossil discipline called invertebrate palaeontology.
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