- Abstract:
-
In 1942, Walls described the concept of a 'nocturnal bottleneck' in placental mammals, where these species could survive only by avoiding daytime activity during times in which dinosaurs were the dominant taxon. Walls based this concept of a longer episode of nocturnality in early eutherian mammals by comparing the visual systems of reptiles, birds and all three extant taxa of the mammalian lineage, namely the monotremes, marsupials (now included in the metatherians) and placentals (included ...
Expand abstract - Publication status:
- Published
- Publisher copy:
- 10.1098/rspb.2013.0508
-
Version unsuitable
-
We have not obtained a suitable full-text for a given research output. See this page for more information.
-
Recently completed
-
Sometimes content is held in ORA but is unavailable for a fixed period of time to comply with the policies and wishes of rights holders.
-
Permissions
-
All content made available in ORA should comply with relevant rights, such as copyright. See this page for more information.
-
Clearance
-
Some thesis volumes scanned as part of the digitisation scheme funded by Dr Leonard Polonsky are currently unavailable due to sensitive material or uncleared third-party copyright content. We are attempting to contact authors whose theses are affected.
- Journal:
- Proceedings. Biological sciences / The Royal Society
- Volume:
- 280
- Issue:
- 1765
- Pages:
- 20130508
- Publication date:
- 2013-08-05
- DOI:
- EISSN:
-
1471-2954
- ISSN:
-
0962-8452
- URN:
-
uuid:d56dd6bb-d640-4a85-ad94-c8c09ec7c804
- Source identifiers:
-
411135
- Local pid:
- pubs:411135
- Language:
- English
- Keywords:
- Copyright date:
- 2013
Journal article
The nocturnal bottleneck and the evolution of activity patterns in mammals.
Actions
Access Document
Why is the content I wish to access not available via ORA?
Bibliographic data (the information relating to research outputs) and full-text items (e.g. articles, theses, reports, etc.) arrive in ORA from several different sources. Unfortunately we are not able to make available the full-text for every research output.
Please contact the ORA team (
) if you have queries regarding unavailable content OR if you are aware of a full-text copy we can make available.
) if you have queries regarding unavailable content OR if you are aware of a full-text copy we can make available.
Content may be unavailable for the following four reasons
Alternative access to the full-text
You may be able to access the full-text directly from the publisher's website using the 'Publisher Copy' link in the 'Links & Downloads' box from a research output's ORA record page. This method may require an institutional or individual subscription to the journal/resource.
Authors
Bibliographic Details
Item Description
Terms of use
If you are the owner of this record, you can report an update to it here: Report update to this record