Results 111 to 120 of about 131,629 (294)

Patterns of spinal motion, kinematic spaces and the land‐to‐sea transition in carnivorans

open access: yesThe Anatomical Record, EarlyView.
Using 3D reconstructions, we quantify intervertebral joint mobility to investigate how cervical, thoracic, and lumbar vertebral regions evolved distinct kinematic roles in pinnipeds. The findings reveal lineage‐specific adaptations for swimming and highlight the functional significance of vertebral joint flexibility in ecological transitions.
Juan Miguel Esteban   +3 more
wiley   +1 more source

Survival strategies of marine mammals in extreme environments: A study of whales and seals [PDF]

open access: yesBIO Web of Conferences
Extreme environments, characterized by challenges such as sub-zero temperatures, limited sunlight and scarce resources, pose great challenges to organisms, including marine mammals.
Aulia Chairunnisa   +3 more
doaj   +1 more source

Gonadal development in scorpion mud‐turtles, Kinosternon scorpioides, in a controlled environment

open access: yesThe Anatomical Record, EarlyView.
Stage 20 was identified as the critical point for gonadal differentiation in Kinosternon scorpioides, providing key insights into sex determination. These findings enhance conservation strategies by supporting reproductive management and population viability in both in situ and ex situ programs. Abstract Research on gonadal development including sexual
Brenda Braga   +4 more
wiley   +1 more source

Evidence of Selection in the Ectodysplasin Pathway among Endangered Aquatic Mammals. [PDF]

open access: yesIntegr Org Biol, 2022
Font-Porterias N   +3 more
europepmc   +1 more source

World prehistory from the margins: the role of coastlines in human evolution [PDF]

open access: yes, 2004
Conventional accounts of world prehistory are dominated by land-based narratives progressing from scavenging and hunting of land mammals and gathering of plants to animal domestication and crop agriculture, and ultimately to urban civilisations supported
Bailey, G.
core  

Comparative cranial biomechanics reveal macroevolutionary trends in theropod dinosaurs, with emphasis on Tyrannosauroidea

open access: yesThe Anatomical Record, EarlyView.
Abstract Tyrannosaurus is viewed as a model organism in vertebrate paleontology, with numerous studies analyzing its feeding biomechanics. Nonetheless, the evolution of this feeding performance has been under‐addressed in Tyrannosauroidea, especially in basal tyrannosauroids. Here we used muscle‐force reconstruction and finite element analysis (FEA) to
Evan Johnson‐Ransom   +4 more
wiley   +1 more source

A decade of studies at Loch Fleet, Galloway (Scotland): A catchment liming project and restoration of a brown trout fishery [PDF]

open access: yes, 1995
Loch Fleet is a small upland lake in the hills of Galloway in southwest Scotland. In the 1970s the waters of the loch became more acidic and a brown trout fishery failed. This account summarises an experimental project, the "Loch Fleet Project" initiated
Dalziel, Tom, Howells, Gwyneth
core  

Marine silicon for biomedical sustainability

open access: yesBMEMat, EarlyView.
Schematic illustrating marine silicon for biomedical engineering. Abstract Despite momentous divergence from oceanic origin, human beings and marine organisms exhibit elemental homology through silicon utilization. Notably, silicon serves as a critical constituent in multiple biomedical processes.
Yahui Han   +3 more
wiley   +1 more source

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