Navigation Links
Unlike other mammals, newborn dolphins and orcas stay active 24/7 during first months of development

If you thought the sleep-deprived months with your newborn were tough, pity the poor mother dolphin or killer whale.

Reporting in the June 30 edition of the peer-reviewed journal Nature, UCLA/Veterans Affairs neuroscientists report a developmental pattern in bottlenose dolphins and killer whales that is unique from other mammals, with calves of both species active 24 hours a day during their first month.

The mother also has minimal sleep during this period, but unlike all other mammals always manages more sleep than her busy newborns. The newborns and mothers gradually increase sleep over a period of months until they reach normal adult levels. As the newborns grow, neither mothers nor offspring show counterbalancing increases in rest that would indicate accumulated sleepiness.

All mammals previously studied have maximum rest or sleep behavior at birth with amounts gradually decreasing to adult levels. In fact, past findings that sleep deprivation for two to three weeks can be lethal in rats and flies has led to the belief that sleep is critical for the development of brain and body and serves a vital function in adults.

The ability to remain active and responsive after birth has several apparent advantages for newborn cetaceans: Movement and wakefulness reduce danger from predators, help maintain body temperature until mass and blubber insulation develop, allow frequent respiration at the surface, and facilitate rapid growth of brain and body and related behavioral development.

"Somehow these seafaring mammals have found a way to cope with sleep deprivation, facilitating rather than hindering a crucial phase of development for their offspring," said Dr. Jerome Siegel, professor-in-residence at the Semel Institute for Neuroscience and Human Behavior at UCLA and chief of neurobiology research at the VA Greater Los Angeles Healthcare System, Sepulveda. "Their bodies have found a way to cope, offering evidence that sleep isn't nec
'"/>

Source:University of California - Los Angeles


Page: 1 2

Related biology news :

1. FDA: Highly Unlikely Green Tea Lowers Cancer Risk
2. Adding Radiation Therapy To Chemotherapy Improves Survival In Patients With High-risk Breast Cancer
3. Another Look Finds Promising Proteomics Test is Not Biologically Plausible
4. Elephants imitate truck noises, other animals
5. Deficiency of growth hormone and IGF-1 reduces cancer and kidney disease, but creates other problems
6. NJIT Presidential Award winner takes stem cell research another step
7. New Treatment Rivals Chemotherapy For Lymphoma, Study Finds
8. NASA links nanobacteria to kidney stones and other diseases
9. Anti cancer virotherapy well tolerated in first human administration, research finds
10. Bevacizumab Combined With Chemotherapy Improves Progression-Free Survival for Patients With Advanced Breast Cancer
11. Report that delayed motherhood decreases life expectancy of mouse offspring
Post Your Comments:
(Date:12/17/2014)... 15, 2014 Research and Markets ... the "Samsung Galaxy S5 - Home Button ... their offering. http://photos.prnewswire.com/prnh/20130307/600769 ... sensing technology than the iPhone 5S, Samsung introduces ... its product. The Galaxy S5 home ...
(Date:12/17/2014)... Research and Markets ( http://www.researchandmarkets.com/research/9zq33j/global_chemical ... "Global Chemical Sensor Market 2015-2019" report to ... One major trend upcoming in ... sensors in biomedical applications. Chemical sensors help in ... diagnosis during surgical procedures. The Global Chemical Sensor ...
(Date:12/11/2014)... Research and Markets , ... http://www.researchandmarkets.com/research/9ql3kr/biometrics_market ) has announced the addition of the ... to their offering. One major ... of multimodal biometric systems. Multimodal biometric systems utilize ... verification and identification purposes. This helps to reduce ...
Breaking Biology News(10 mins):Samsung Galaxy S5 - Home Button Synaptics Fingerprint Sensor Technology Analysis 2Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2
... species in streams begins to occur at the initial stages ... USGS. The study found that streams are more sensitive to ... of waterways as fragile organisms, and yet that is exactly ... telling us," said USGS Director Marcia McNutt. "Streams are more ...
... This release is available in French . ... according to a review lead by Gabriel Shapiro of the ... Mother and Child Hospital. Women are at the highest risk ... a child may trigger a depressive episode in vulnerable women. ...
... at the National Institute of Standards and Technology (NIST) ... nanotubes (SWCNTs) may help protect DNA molecules from damage ... process in which a reactive chemical removes electrons from ... cells. More studies are needed to see if the ...
Cached Biology News:Streams show signs of degradation at earliest stages of urban development 2NIST study suggests carbon nanotubes may protect DNA from oxidation 2
(Date:12/19/2014)... and Hershey, PA (PRWEB) December 19, 2014 ... BJCT), a leading developer and manufacturer of needle-free ... into an agreement with Immunomic Therapeutics, Inc. (“ITI”) ... needle-free injection device with its LAMP™ vaccine platform. ... option for an exclusive Worldwide license to the ...
(Date:12/19/2014)... EVANSTON, Ill. , Dec. 19, 2014 ... to develop novel drugs for diseases of the central ... Ph.D., president and chief executive officer, will present at ... Dr. Riedel,s presentation will take place at 3:00 p.m. ... St. Francis in San Francisco, Calif. ...
(Date:12/19/2014)... Mass. , Dec. 19, 2014 Decision ... market will grow at a 12 percent compound annual ... result of the aging population and the increasing adoption ... Latin America will also spur demand for ... of dental implant and periodontal treatments. Other ...
(Date:12/19/2014)... (PRWEB) December 18, 2014 Today, ... locate its pilot production facility and future company ... and produce innovative new materials that safely and ... not only because of its historic, strong support ... efforts to attract leading edge, technology-based companies such ...
Breaking Biology Technology:Bioject and Immunomic Therapeutics Enter into an Agreement for License of Needle-Free Technology for LAMP-vax Vaccines 2Bioject and Immunomic Therapeutics Enter into an Agreement for License of Needle-Free Technology for LAMP-vax Vaccines 3Naurex to Present at 33rd Annual J.P. Morgan Healthcare Conference 2Latin American Dental Biomaterial Market Will Expand at a 12 Percent Annual Growth Rate Through 2023 2Latin American Dental Biomaterial Market Will Expand at a 12 Percent Annual Growth Rate Through 2023 3Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 2Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 3Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 4
... May 19, 2011 Ardea Biosciences, Inc. (Nasdaq: ... completed, multi-center, Phase 1, monotherapy, dose-escalation study of BAY ... an Oral Abstract Session at the 2011 American Society ... on Sunday, June 5, 2011. Presentation ...
... 19, 2011 Isis Pharmaceuticals, Inc. (NASDAQ: ... $5 million milestone payment from GlaxoSmithKline (GSK) related to ... ISIS-TTRRx.  ISIS-TTRRx is designed to treat transthyretin amyloidosis, a ... of peripheral nerve and/or heart tissues . ISIS-TTRRx ...
... YORK, May 19, 2011 Reportlinker.com ... report is available in its catalogue: ... (MEMs) Devices Industry ... report analyzes the worldwide markets for ...
Cached Biology Technology:Ardea Biosciences Announces Data on MEK Inhibitor BAY 86-9766 (RDEA119) to be Presented at 2011 American Society of Clinical Oncology Annual Meeting 2Ardea Biosciences Announces Data on MEK Inhibitor BAY 86-9766 (RDEA119) to be Presented at 2011 American Society of Clinical Oncology Annual Meeting 3Isis Initiates Phase 1 Study of ISIS-TTRRx and Earns $5 Million Milestone Payment From GlaxoSmithKline 2Isis Initiates Phase 1 Study of ISIS-TTRRx and Earns $5 Million Milestone Payment From GlaxoSmithKline 3Isis Initiates Phase 1 Study of ISIS-TTRRx and Earns $5 Million Milestone Payment From GlaxoSmithKline 4Global Micro-Electromechanical Systems (MEMs) Devices Industry 2Global Micro-Electromechanical Systems (MEMs) Devices Industry 3Global Micro-Electromechanical Systems (MEMs) Devices Industry 4Global Micro-Electromechanical Systems (MEMs) Devices Industry 5Global Micro-Electromechanical Systems (MEMs) Devices Industry 6Global Micro-Electromechanical Systems (MEMs) Devices Industry 7Global Micro-Electromechanical Systems (MEMs) Devices Industry 8Global Micro-Electromechanical Systems (MEMs) Devices Industry 9Global Micro-Electromechanical Systems (MEMs) Devices Industry 10Global Micro-Electromechanical Systems (MEMs) Devices Industry 11Global Micro-Electromechanical Systems (MEMs) Devices Industry 12Global Micro-Electromechanical Systems (MEMs) Devices Industry 13Global Micro-Electromechanical Systems (MEMs) Devices Industry 14Global Micro-Electromechanical Systems (MEMs) Devices Industry 15Global Micro-Electromechanical Systems (MEMs) Devices Industry 16Global Micro-Electromechanical Systems (MEMs) Devices Industry 17Global Micro-Electromechanical Systems (MEMs) Devices Industry 18Global Micro-Electromechanical Systems (MEMs) Devices Industry 19Global Micro-Electromechanical Systems (MEMs) Devices Industry 20Global Micro-Electromechanical Systems (MEMs) Devices Industry 21Global Micro-Electromechanical Systems (MEMs) Devices Industry 22Global Micro-Electromechanical Systems (MEMs) Devices Industry 23Global Micro-Electromechanical Systems (MEMs) Devices Industry 24
This free-standing laminar flow hood provides a vertical flow of HEPA-filtered air to create a clean processing area. It includes a fluorescent light and motorized sliding shield. Options include wor...
... number is a new product ... Cornings product number. If showing ... under the old Sigma-Aldrich number ... for assistance. ID clarifier: rack ...
... GX-1000 3-D Shaker , ,Product Information ... of the GyroTwister GX-1000 is extremely efficient, ... general mixing as well as staining gels, ... continuously adjustable across a broad range. A ...
...
Biology Products: