Results 31 to 40 of about 34,561 (255)

Comparative genomics reveals evolutionary loss of epiplakin in cetaceans

open access: yesScientific Reports, 2022
The adaptation of vertebrates to different environments was associated with changes in the molecular composition and regulation of epithelia. Whales and dolphins, together forming the clade cetaceans, have lost multiple epithelial keratins during or ...
Peter Fuchs   +3 more
doaj   +1 more source

Accelerated evolution and diversifying selection drove the adaptation of cetacean bone microstructure

open access: yesBMC Evolutionary Biology, 2019
Background The transition from land to sea by the ancestor of cetaceans approximately 50 million years ago was an incredible evolutionary event that led to a series of morphological, physiological, and behavioral adaptations. During this transition, bone
Di Sun   +5 more
doaj   +1 more source

Decompressive Pathology in Cetaceans Based on an Experimental Pathological Model

open access: yesFrontiers in Veterinary Science, 2021
Decompression sickness (DCS) is a widely known clinical syndrome in human medicine, mainly in divers, related to the formation of intravascular and extravascular gas bubbles.
Alicia Velázquez-Wallraf   +6 more
doaj   +1 more source

How large should whales be? [PDF]

open access: yes, 2013
The evolution and distribution of species body sizes for terrestrial mammals is well-explained by a macroevolutionary tradeoff between short-term selective advantages and long-term extinction risks from increased species body size, unfolding above the 2g
A Clauset   +56 more
core   +6 more sources

Intestinal Volvulus in Cetaceans [PDF]

open access: yesVeterinary Pathology, 2012
Intestinal volvulus was recognized as the cause of death in 18 cetaceans, including 8 species of toothed whales (suborder Odontoceti). Cases originated from 11 institutions from around the world and included both captive ( n = 9) and free-ranging ( n = 9) animals. When the clinical history was available ( n = 9), animals consistently demonstrated acute
Begeman, L.   +11 more
openaire   +3 more sources

The molecular evolution of genes previously associated with large sizes reveals possible pathways to cetacean gigantism

open access: yesScientific Reports, 2023
Cetaceans are a group of aquatic mammals with the largest body sizes among living animals, including giant representatives such as blue and fin whales.
Felipe André Silva   +4 more
doaj   +1 more source

The diatoms test in veterinary medicine: a pilot study on cetaceans and sea turtles [PDF]

open access: yes, 2018
Fishing activities are considered one of the most relevant threats for cetaceans and sea turtles con- servation since these animals are sometimes found dead entangled in fishing gears.
Barbieri, Stefania   +11 more
core   +1 more source

Insights into body size variation in cetaceans from the evolution of body-size-related genes

open access: yesBMC Evolutionary Biology, 2019
Background Cetaceans exhibit an exceptionally wide range of body size, yet in this regard, their genetic basis remains poorly explored. In this study, 20 body-size-related genes for which duplication, mutation, or deficiency can cause body size change in
Yingying Sun   +6 more
doaj   +1 more source

Cetaceans value and conservation in the Mediterranean Sea [PDF]

open access: yes, 2015
This review provides an overview of the Mediterranean diversity and conservation status of cetaceans, and the value associated with their conservation and non-consumptive use. Mediterranean Sea is one of the world's diversity hotspots.
Mussi, B.   +2 more
core   +1 more source

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