Results 41 to 50 of about 1,371,749 (214)

First evidence of a mandibular crest in Brasileodactylus Kellner, 1984 (Pterosauria, Pteranodontoidea, Anhangueridae), with comments on pterosaur headcrests

open access: yesThe Anatomical Record, EarlyView.
Abstract Brasileodactylus araripensis Kellner, 1984, is a toothed pterosaur from the Lower Cretaceous Romualdo Formation of the Araripe Basin, Brazil. Traditionally regarded as crestless, the species has been central to debates on anhanguerid taxonomy, as most members of the clade possess well‐developed sagittal cranial or dentary crests.
Anderson da Silva Nascimento   +4 more
wiley   +1 more source

Spatial distribution and habitat selection of common bottlenose dolphins (Tursiops truncatus) within two estuaries in southern coastal USA

open access: yesScientific Reports
Coastal waters are increasingly exposed to anthropogenic pressures, resulting in the degradation of critical habitats that shape the distribution of marine predators.
Thibaut Bouveroux   +5 more
doaj   +1 more source

Morphological description of the oropharyngeal cavity of Kinosternon scorpioides scorpioides (Linnaeus, 1766), (Testudines: Kinosternidae)

open access: yesThe Anatomical Record, EarlyView.
Gross morphology, Light Microscopy and Scanning Electron Microscopy revealed the structural organization of the oropharyngeal cavity of Kinosternon scorpioides scorpioides, characterized by mucous epithelium, epithelial pores, and developed lingual papillae.
Andréa Magalhães Bezerra   +7 more
wiley   +1 more source

Incongruent long‐term trends of a marine consumer and primary producers in a habitat affected by nutrient pollution

open access: yesEcosphere, 2021
Nutrient pollution, defined as excess nitrogen and phosphorus related to human activities, is a widespread anthropogenic impact that decreases water quality and limits light penetration in estuarine habitats.
Christopher A. Long   +5 more
doaj   +1 more source

Citizen-Sourced Sightings and Underwater Photography Reveal Novel Insights About Green Sea Turtle Distribution and Ecology in Southern California

open access: yesFrontiers in Marine Science, 2021
East Pacific (EP) green turtles (Chelonia mydas) have undergone substantial population recovery over the last two decades owing to holistic protection at nesting beaches and foraging areas. At the northern end of their range in southern California United
Megan E. Hanna   +6 more
doaj   +1 more source

Histological description and bone compactness analysis of fossil (Aldabrachelys sp.) and extant Aldabra giant tortoise (Aldabrachelys gigantea) shell bone fragments

open access: yesThe Anatomical Record, EarlyView.
Abstract Aldabra Atoll, north of Madagascar and part of the Seychelles Outer Islands, is home to the Aldabra giant tortoise, Aldabrachelys gigantea, the only survivor of several species of giant tortoises that were once widespread on islands across the Western Indian Ocean.
Stefanie Herter   +9 more
wiley   +1 more source

Charles Longcope Jr. Turtle Creek Chorale Audio Archive

open access: yes, 1996
Audio recording from the Turtle Creek Chorale Collection (The Dallas Way) collection, an American men's chorus based in Dallas, Texas. This recording is of the choir's rehearsal for an upcoming Christmas concert.
Turtle Creek Chorale
core   +2 more sources

First offshore island record of Mauremys annamensis (Siebenrock, 1903) (Testudines, Geoemydidae) in Vietnam [PDF]

open access: yesCheck List
We report the first record of the Critically Endangered Vietnamese Pond Turtle, Mauremys annamensis (Siebenrock, 1903), from the Cu Lao Cham Archipelago, Quang Nam Province, central Vietnam, based on two individuals observed in 2015 and
Luan Thanh Nguyen   +5 more
doaj   +3 more sources

The influence of circadian variables on ecotoxicology metabolomics

open access: yesBiological Reviews, EarlyView.
ABSTRACT Ecotoxicologists are using metabolomics increasingly to gain insight into toxicological mechanisms and sublethal effects of chemical exposures. Metabolomics offers a sensitive multi‐parameter approach that can detect biochemical responses not obvious using apical and behavioural endpoints.
Ryan I. Lester   +3 more
wiley   +1 more source

Validated Environmental DNA Assay for Detection of the Rare Rice's Whale (Balaenoptera ricei)

open access: yesEnvironmental DNA
The Rice's whale (Balaenoptera ricei) is a critically endangered baleen whale species that resides year‐round in the Gulf of America (formerly the U.S. Gulf of Mexico). The majority of whale sightings occur where the seafloor varies between 100 and 400 m
Lynsey A. Wilcox Talbot   +5 more
doaj   +1 more source

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