Results 61 to 70 of about 1,796,928 (262)

Evidence of Positive Selection in Mitochondrial Complexes I and V of the African Elephant

PLoS ONE, 2014
As species evolve, they become adapted to their local environments. Detecting the genetic signature of selection and connecting that to the phenotype of the organism, however, is challenging. Here we report using an integrative approach that combines DNA
Tabitha Finch, Nan Zhao, Dmitry Korkin, Katy H. Frederick, L. Eggert   +4 more
semanticscholar   +1 more source

Humans are not unique: difficult birth is common in placental mammals

Biological Reviews, EarlyView.
ABSTRACT Human childbirth is widely presumed to be uniquely difficult and dangerous compared to birth in other mammals. Tight fetopelvic proportions can result in obstructed labour and contribute to high rates of maternal and neonatal mortality. Ideas summarised under the ‘obstetrical dilemma’ have contributed to this assumption by explaining difficult
Nicole D. S. Grunstra
wiley   +1 more source

Genomic DNA sequences from mastodon and woolly mammoth reveal deep speciation of forest and savanna elephants.

PLoS Biology, 2010
To elucidate the history of living and extinct elephantids, we generated 39,763 bp of aligned nuclear DNA sequence across 375 loci for African savanna elephant, African forest elephant, Asian elephant, the extinct American mastodon, and the woolly ...
Nadin Rohland, David Reich, Swapan Mallick, Matthias Meyer, Richard E Green, Nicholas J Georgiadis, Alfred L Roca, Michael Hofreiter   +7 more
doaj   +1 more source

Habitat use and preference by the African elephant outside of the protected area, and management implications in the Amboseli Landscape, Kenya

, 2015
Elephants in the borderland of Kenya and Tanzania landscape roam freely outside the protected areas. These areas are critical for long term elephant survival and viability.
Moses Makonjio Okello, Steve Njumbi, J. Kiringe, James Isiiche   +3 more
semanticscholar   +1 more source

Utterance evolution: the road to generative, combinatorial communicators

Biological Reviews, EarlyView.
ABSTRACT Language has long been considered uniquely complex in the animal kingdom; however, animal research over the last decade has begun to challenge some long‐standing premises about exactly which language capacities are uniquely human. The task of resolving why and how complex communication systems evolve, particularly human language, has ...
Catherine Crockford, Roman Martin Wittig, Cedric Girard‐Buttoz   +2 more
wiley   +1 more source

Clinical health issues, reproductive hormones, and metabolic hormones associated with gut microbiome structure in African and Asian elephants

Animal Microbiome, 2021
Background The gut microbiome is important to immune health, metabolism, and hormone regulation. Understanding host–microbiome relationships in captive animals may lead to mediating long term health issues common in captive animals.
Mia M. Keady, Natalia Prado, Haw Chuan Lim, Janine Brown, Steve Paris, Carly R. Muletz-Wolz   +5 more
doaj   +1 more source

Astragalus ecomorphology in Quaternary elephantids

Journal of Quaternary Science, EarlyView.
ABSTRACT The astragalus plays a fundamental role in the graviportal locomotion of proboscideans, reflecting the biomechanical constraints imposed by large body masses. This study analyses the morphological variability of the astragalus in Quaternary elephantids using linear biometry and 3D geometric morphometrics, incorporating an unpublished ...
Darío Fidalgo, Palmira Saladié, Josep Valverdú, Antonio Pineda, Rosa Huguet, Joan Madurell‐Malapeira, Antonio Rosas   +6 more
wiley   +1 more source

African Elephant Play, Competence and Social Complexity

, 2014
Play in African elephants (Loxodonta africana) is a life-long activity, with both males and females engaging in a variety of forms of play into their 40s and 50s.
Phyllis C. Lee, C. Moss
semanticscholar   +1 more source

More than proteins for empty stomachs: Wild meat in the BaTonga food system

People and Nature, EarlyView.
Abstract Our paper highlights the limitations of the framework used by many conservation‐focused programmes that incorporate food security objectives. This framework encourages the substitution of wild proteins with domestic proteins by promoting animal farming in communities located near conservation areas.
Muriel Figuié, Luzibo Ottilia Munsaka, Vupenyu Dzingirai, Olivier Lepiller, Maxwell Phiri, Patrice Grimaud   +5 more
wiley   +1 more source

Global positioning system (GPS) collar data shows variations in distribution, ranging area and habitat selection of the African savannah elephant in a semi-arid protected area

Sustainable Environment
The African savannah elephant (Loxodonta africana) migrate in landscapes with patchily distributed food resources in semi-arid environments. GPS collar data in combination with the Minimum Convex Polygon approach (100% MCP) can be utilised to investigate
Nobert Tafadzwa Mukomberanwa, Phillip Taru, Beaven Utete, Patmore Ngorima   +3 more
doaj   +1 more source