Results 71 to 80 of about 33,062 (329)
Merging paleobiology with conservation biology to guide the future of terrestrial ecosystems
Science, 2017 Looking back to move forward The current impacts of humanity on nature are rapid and destructive, but species turnover and change have occurred throughout the history of life.
A. Barnosky +45 more
semanticscholar +1 more source
Three‐dimensional geometric morphometric analysis of diaphragmatic dome motion in COPD patients
The Anatomical Record, EarlyView.Abstract Diaphragmatic dysfunction is a hallmark of chronic obstructive pulmonary disease (COPD), especially in emphysema, where hyperinflation alters diaphragm geometry and impairs inspiratory mechanics. However, quantitative three‐dimensional (3D) assessments of diaphragmatic dome shape and motion across COPD phenotypes are limited.
José M. López‐Rey +5 more
wiley +1 more source
Climatic change in northeastern Brazil: paleoparasitological data
Memorias do Instituto Oswaldo Cruz, 1993 Trichuris eggs were observed in Kerodon rupestris coprolites dated 9,000 years before present, collected in archeological sites of São Raimundo Nonato, northeastern Brazil.
Adauto Araujo +2 more
doaj +1 more source
Quaternary, 2021 Worldwide, scientific understanding about domestication and the origins of food production is undergoing rapid change based on new data from discoveries in paleoclimates and environments, paleobiology, and archaeology [...]
Pei-Lin Yu, Kazunobu Ikeya, Meng Zhang
doaj +1 more source
Possible Origin of Stagnation and Variability of Earth's Biodiversity
, 2014 The magnitude and variability of Earth's biodiversity have puzzled scientists ever since paleontologic fossil databases became available. We identify and study a model of interdependent species where both endogenous and exogenous impacts determine the ...
Geisel, Theo +2 more
core +1 more source
The Anatomical Record, EarlyView.Abstract Studies investigating paleopathologies in sauropods remain scarce despite their relative abundance in the fossil record. In this study we report new occurrence of paleopathological features, corresponding to a neoplasm found in a middle caudal vertebra (MCT.R.2120) of an advanced titanosaur from the Presidente Prudente Formation (Bauru Basin ...
Maria Luiza Peres Bertolossi +5 more
wiley +1 more source
Comparison of diverse mandibular mechanics during biting in Devonian lungfishes
iScienceSummary: Fossil lungfish from the Late Devonian Gogo Formation, Australia, feature some of the most remarkable and specialized mandible morphologies in their 415-million-year history.
Joshua Bland +7 more
doaj +1 more source
Stable isotopes and predation marks shed new light on ammonoid habitat depth preferences
Scientific Reports, 2021 Ammonoids are extinct cephalopods with external shells which predominated in many late Paleozoic and Mesozoic marine ecosystems. Stable isotope data from ammonoid shells constitute primary tools for understanding their palaeohabitats.
Marcin Machalski +4 more
doaj +1 more source
Frontiers in Ecology and Evolution, 2021 Lagomorpha is a clade of herbivorous mammals nested within Euarchontoglires, one of the major placental groups represented today. It comprises two extant families with markedly different body plans: the long-eared and long-limbed Leporidae (hares and ...
Andrzej S. Wolniewicz +3 more
doaj +1 more source
Power, competition, and the nature of history [PDF]
, 2019 Historians have debated whether pathways and events from the past to the present are influenced largely by contingency, the dependence of outcomes on particular prior conditions, or whether there is long-term emergent directional change.
Vermeij, Geerat J
core +1 more source