Examlex
Describe two ways that Homo sapiens was different from earlier Homo species.
Infancy
The earliest stage in human development, extending from birth to approximately 2 years of age, marked by rapid physical and cognitive growth.
REM Sleep
A stage of sleep characterized by rapid eye movements, more dreaming, and bodily movement; considered important for emotional regulation and memory consolidation.
Mammals
Warm-blooded vertebrate animals characterized by the presence of mammary glands, which females use to feed their young.
Chronic Sleep Deprivation
A condition characterized by consistently not achieving enough sleep, leading to significant negative health and cognitive effects.
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