Results 81 to 90 of about 186,441 (305)

First record of the epizoic red seaweed Polysiphonia carettia Hollenberg in the Mediterranean Sea. [PDF]

open access: yes, 2001
Primera cita del alga roja epizoica Polysiphonia carettia Hollenberg en el mar Mediterráneo Key words. Caretta caretta, epibionts, Mediterranean Sea, Polysiphonia carettia. Palabras claves.
Báez, José C.   +4 more
core   +4 more sources

Endothermy, neuron counts, and other issues: Further remarks on neurocognitive evolution in fossil vertebrates

open access: yesThe Anatomical Record, EarlyView.
Abstract Last year, we challenged the view that large‐bodied theropod dinosaurs such as Tyrannosaurus rex resembled primates in cognition and behavior, a proposition made by Herculano‐Houzel in 2023. More recently, Jensen et al. have criticized our work on this topic, raising methodological and conceptual issues.
Kai R. Caspar   +5 more
wiley   +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

Aging dynamics in captive sea turtles reflect conserved life-history patterns across the testudine phylogeny

open access: yesCommunications Biology
Recent work has shown testudines can escape actuarial senescence for extended periods. However, understanding how the interplay between somatic aging and reproductive investment in highly fecund, long-lived ectotherms align with broader phylogenetic ...
C. George Glen   +6 more
doaj   +1 more source

Variation in age and size at sexual maturity in Kemp’s ridley sea turtles

open access: yesEndangered Species Research, 2014
Age at sexual maturity (AgeSM) is one of the most serious demographic data gaps for sea turtle populations. Better estimates of AgeSM and associated variance would improve evaluation of population dynamics and responses of populations to disturbances and
KA Bjorndal   +3 more
doaj   +1 more source

Hawksbill (Eretmochelys imbricata) and Green Turtle (Chelonia mydas) Nesting and Beach Selection at Príncipe Island, West Africa [PDF]

open access: yes, 2019
Hawksbills (Eretmochelys imbricata) and green turtles (Chelonia mydas) are the predominant nesting sea turtle species on the beaches of Príncipe Island in the Gulf of Guinea.
Bolten, Alan B.   +2 more
core  

Insect (Arthropoda: Insecta) Composition in the Diet of Ornate Box Turtles (Terrapene ornata ornata) in Two Western Illinois Sand Prairies, with a New State Record for Cyclocephala (Coleoptera: Scarabaeidae) [PDF]

open access: yes, 2018
A study of fecal samples collected over a two-year period from juvenile ornate box turtles (Terrapene ornata ornata Agassiz) revealed diets consisting of six orders of insects representing 19 families. Turtles were reared in captivity from eggs harvested
Lago, P. K.   +3 more
core   +3 more sources

Nasal soft‐tissue anatomy of Triceratops and other horned dinosaurs

open access: yesThe Anatomical Record, EarlyView.
Abstract Although ceratopsid dinosaurs possess a characteristically hypertrophied narial region, soft‐tissue anatomy associated with such a skeletal structure and their biological significance remain poorly understood. The present study provides the first comprehensive hypothesis on the soft‐tissue anatomy in the ceratopsid rostrum based on the Extant ...
Seishiro Tada   +5 more
wiley   +1 more source

The turtle’s shell [PDF]

open access: yesCurrent Biology, 2017
Gerardo Cordero introduces the turtle shell, an evolutionary novelty.
openaire   +2 more sources

Sea turtle nesting activity along Eglin Air Force Base on Cape San Blas and Santa Rosa Island, Florida from 1994 to 1997. [PDF]

open access: yes, 1998
Along EAFB on Cape San BIas, the only sea turtle species nest observed has been the loggerhead turtle. The first green turtle nest documented along the Florida panhandle coast was observed on EAFB property, however (D. Atencio, EAFB, pers.
Carthy, Raymond R.   +4 more
core  

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