Mammalian life histories: their evolution and molecular-genetic mechanisms
Conference
·
OSTI ID:6369261
Survival curves for various species of mammals are discussed and a table is presented to show recorded maximum life spans of about 30 species of mammals. The range of longevities is from one year for shrews and moles up to more than 80 years for the fin whale. The constitutional correlates of longevity are discussed with regard to body size, brain weight,metabolic rates, and body temperature. It is concluded that longevity evolved as a positive trait, associated with the evolution of large body size and brain size. Life table data for man, the thorough-bred horse, beagle dogs, and the laboratory rodents, Mus musculus and Peromyscus leucopus are discussed. The data show a pattern of exponential increase of death rate with age. A laboratory model using Mus musculus and Peromyscus leucopus for the study of the longevity-assurance mechanisms is described. (HLW)
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6369261
- Report Number(s):
- CONF-780777-1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
550100* -- Behavioral Biology
59 BASIC BIOLOGICAL SCIENCES
AGE DEPENDENCE
ANIMALS
BEAGLES
BIOLOGICAL EVOLUTION
BIOLOGICAL VARIABILITY
BIOLOGY
BODY
BODY TEMPERATURE
BRAIN
CENTRAL NERVOUS SYSTEM
DATA
DATA COMPILATION
DATA FORMS
DOGS
EXPERIMENTAL DATA
GENETICS
HORSES
INFORMATION
LABORATORY ANIMALS
LIFE SPAN
MAMMALS
MAN
METABOLISM
MICE
MORTALITY
NERVOUS SYSTEM
NUMERICAL DATA
ORGANS
PRIMATES
RODENTS
SIZE
SURVIVAL CURVES
TABLES
VERTEBRATES
WEIGHT
59 BASIC BIOLOGICAL SCIENCES
AGE DEPENDENCE
ANIMALS
BEAGLES
BIOLOGICAL EVOLUTION
BIOLOGICAL VARIABILITY
BIOLOGY
BODY
BODY TEMPERATURE
BRAIN
CENTRAL NERVOUS SYSTEM
DATA
DATA COMPILATION
DATA FORMS
DOGS
EXPERIMENTAL DATA
GENETICS
HORSES
INFORMATION
LABORATORY ANIMALS
LIFE SPAN
MAMMALS
MAN
METABOLISM
MICE
MORTALITY
NERVOUS SYSTEM
NUMERICAL DATA
ORGANS
PRIMATES
RODENTS
SIZE
SURVIVAL CURVES
TABLES
VERTEBRATES
WEIGHT