Results 261 to 270 of about 135,648 (340)
CanFlyet: habitat zone and diet trait dataset for Diptera species of Canada and Greenland. [PDF]
Majoros SE, Elliott TA, Adamowicz SJ.
europepmc +1 more source
Abstract Saber‐tooths, extinct apex predators with long and blade‐like upper canines, have appeared iteratively at least five times in the evolutionary history of vertebrates. Although saber‐tooths exhibit a relatively diverse range of morphologies, it is widely accepted that all killed their prey using the same predatory behavior. In this study, we CT‐
Borja Figueirido+2 more
wiley +1 more source
The oldest anchor for lunar crater chronology constrained by the new age of 4.25 Ga of the South Pole-Aitken basin. [PDF]
Xu YG, Chen J.
europepmc +1 more source
Abstract The trigeminus nerve (cranial nerve V) is a large and significant conduit of sensory information from the face to the brain, with its three branches extending over the head to innervate a wide variety of integumentary sensory receptors, primarily tactile.
Juri A. Miyamae+4 more
wiley +1 more source
Impact-induced sublimation drives volatile depletion in carbonaceous meteorites. [PDF]
Long ZY+11 more
europepmc +1 more source
Helmeted hornbill cranial kinesis: Balancing mobility and stability in a high‐impact joint
Abstract Prokinesis—in which a craniofacial joint allows the rostrum to move relative to the braincase—is thought to confer diverse advantages in birds, mostly for feeding. A craniofacial joint would, however, be a weak link if cranial stability is important. Paradoxically, we have identified a craniofacial joint in helmeted hornbills (Rhinoplax vigil),
Mike Schindler+8 more
wiley +1 more source
Organic matter and biomarkers: Why are samples required? [PDF]
Sephton MA+3 more
europepmc +1 more source
Abstract Plutonium was discovered and first synthesized in the early 1940's. Several isotopes of plutonium are used in nuclear technologies, 238Pu for heat generation and 239Pu for energy production and weapons. Both isotopes emit alpha particles, which pose a significant radiation hazard when incorporated into the body.
Scott C. Miller
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Mathematical biases in the calculation of the Living Planet Index lead to overestimation of vertebrate population decline. [PDF]
Toszogyova A, Smyčka J, Storch D.
europepmc +1 more source
Abstract The oval window (OW) is an opening connecting the inner and middle ear. Its area has been shown to consistently scale with body mass (BM) in primates, and has been used alongside semi‐circular canal (SCC) size to differentiate Homo sapiens and fossil hominins, including Paranthropus robustus.
Ruy Fernandez, José Braga
wiley +1 more source