Marine biologists have described a new species of the shark genus Heterodontus from northwestern Australia based on six whole specimens and a single egg...
The ‘eel hypothesis’ proposes that the anthrozoological phenomenon at Loch Ness in Scotland can be explained in part by observations of large-bodied...
Few fast-swimming apex fishes are classified as regional endotherms, or partially warm-blooded, having evolved a relatively uncommon suite of traits (e.g....
A new species of the ctenochasmatid pterosaur genus Petrodactyle has been described from an unusual specimen found in the Late Jurassic limestone beds...
Otodus megalodon, a megatooth shark that lived between 23 and 3.6 million years ago, was not a fast swimmer, but it had a mega-appetite explaining its...
Now known for its sports teams, Harleys, and beer, early Milwaukee County, Wisconsin was one of the nation’s leading producers of natural cement, and...
Researchers have described a new species of the fish genus Sturisoma from Madeira River basin in Bolivia and Brazil.
Live specimen of Sturisoma reisi from...
The new specimen represents the first occurrence of an acipenseriform (sturgeon) fish on the continent of Africa.
The European sea sturgeon (Acipenser...
Skates are cartilaginous fish whose body plan features enlarged wing-like pectoral fins, enabling them to thrive in benthic environments. However, the...
Paleontologists have described a new genus and species of broad-snouted chondrichthyan fish from several fossilized specimens found in Morocco.
Reconstruction...
Scientists from the Australian Museum Research Institute, the University of Sydney and the Museum and Art Gallery of the Northern Territory have described...
In spring, female thick-shelled river mussels (Unio crassus) were seen moving to the water’s edge and anchoring into the riverbed, with their back ends...
Dunkleosteus terrelli, an armor-plated fish that lived in the shallow subtropical waters of the Devonian period, about 360 million years ago, is one of...
Paleontologists from the University of Vienna and elsewhere have revised a controversial species of the elasmobranch Protospinax annectans based on new...
The newly-identified species of tristichopterid fish grew up to 3 m (10 feet) long and belongs to the extinct genus Hyneria.
Life reconstruction of the...
The newly-discovered species belongs to Horaglanis, a genus of rarely-collected, tiny, blind, pigment less, and strictly aquifer-residing catfish.
Horaglanis...
Surface-based group feeding of Indo-Pacific sailfish (Istiophorus platypterus), a highly popular species in recreational fishing worldwide, is commonly...
Scientists from the Kyoto University Museum and elsewhere have described a new species of the fish genus Coradion from Australian waters.
Coradion calendula....
In a series of experiments conducted in Japan, mirror-naïve bluestreak cleaner wrasses (Labroides dimidiatus) frequently attacked photographs of both...
The recovery of life from the devastating end-Permian mass extinction, which peaked about 252.3 million years ago, was an important period of evolution....
