Results 11 to 20 of about 8,135 (208)

Sleep in the platypus

open access: yesNeuroscience, 1999
We have conducted the first study of sleep in the platypus Ornithorhynchus anatinus. Periods of quiet sleep, characterized by raised arousal thresholds, elevated electroencephalogram amplitude and motor and autonomic quiescence, occupied 6-8 h/day. The platypus also had rapid eye movement sleep as defined by atonia with rapid eye movements, twitching ...
Siegel, J. M.   +5 more
openaire   +7 more sources

The Platypus Genome Unraveled [PDF]

open access: yesCell, 2008
The genome of the platypus has been sequenced, assembled, and annotated by an international genomics team. Like the animal itself the platypus genome contains an amalgam of mammal, reptile, and bird-like features.
O\u27Brien, Stephen J.   +1 more
openaire   +3 more sources

Annotation and Characterization of the Zacco platypus Genome

open access: yesDiversity
The pale chub Zacco platypus (Cypriniformes; Xenocyprididae; Jordan & Evermann, 1902) is widely distributed across freshwater ecosystems in East Asia and has been recognized as a potential model fish species for ecotoxicology and environmental monitoring.
Sang-Eun Nam   +2 more
doaj   +2 more sources

Applying a modified streamlined disease risk analysis framework to a platypus conservation translocation, with special consideration for the conservation of ecto- and endoparasites [PDF]

open access: yesInternational Journal for Parasitology: Parasites and Wildlife
Platypuses are the world's most evolutionarily distinct mammal and have several host-specific ecto- and endoparasites. With platypus populations declining, consideration should also be given to preserving these high conservation priority parasites ...
Jessica Whinfield   +3 more
doaj   +2 more sources

Phanerozoic Large Igneous Province, Petroleum System, and Source Rock Links

open access: yesGeophysical Monograph Series, Page 191-228., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Steven C. Bergman   +2 more
wiley  

+1 more source

Using State-and-Transition Simulation Models (STSMs) to Explore Dynamic Population Responses to Drought Cycles in Freshwater Ecosystems

open access: yesFrontiers in Environmental Science, 2022
Climate variability and change pose significant threats to aquatic biodiversity, particularly in areas with low and variable streamflow. Quantifying the magnitude of risk from these threats is made more difficult by the variable responses of individual ...
Nick R. Bond   +4 more
doaj   +1 more source

Ni kaczka, ni bóbr, czyli słów kilka o dziobaku w symbolice i wierzeniach Aborygenów

open access: yesZoophilologica, 2020
Since ancient times, people have been fascinated by animals. They are such a close element of the biosphere, that it is not possible for them to go unnoticed.
Dawid R. Wesołowski
doaj   +1 more source

Fragmentation by major dams and implications for the future viability of platypus populations

open access: yesCommunications Biology, 2022
Major dams are found to disrupt platypus gene flow and dispersal, with higher genetic differentiation found across dams than along similar stretches of undammed rivers, indicating that they act as significant barriers to platypus movement.
Jose L. Mijangos   +10 more
doaj   +1 more source

Long-term movements and activity patterns of platypus on regulated rivers

open access: yesScientific Reports, 2021
The platypus is a semi-aquatic mammal, endemic to freshwater habitats of eastern Australia. There are gaps in the understanding of platypus movement behaviour within river systems, including spatial and temporal organization of individuals.
Tahneal Hawke   +5 more
doaj   +1 more source

Tracing Monotreme Venom Evolution in the Genomics Era

open access: yesToxins, 2014
The monotremes (platypuses and echidnas) represent one of only four extant venomous mammalian lineages. Until recently, monotreme venom was poorly understood.
Camilla M. Whittington, Katherine Belov
doaj   +1 more source

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