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Physical development. Typically grows between 0.5 and 0.75 inches (1.3 and 1.9 cm) and gains between 1 and 1.25 pounds (450 and 570 g). [34] Motor development. Begins to sit without support of hands. [35] Able to support entire weight on legs. [35] Sensory development. Able to see in full color. [35]
Possible early ancestors of catarrhines include Aegyptopithecus and Saadanius. 35-20 Ma Proconsul. Catarrhini splits into 2 superfamilies, Old World monkeys (Cercopithecoidea) and apes . Human trichromatic color vision had its genetic origins in this period. Catarrhines lost the vomeronasal organ (or possibly reduced it to vestigial status).
21 kya: Artifacts suggest early human activity occurred in Canberra, the capital city of Australia. [70] 20 kya: Kebaran culture in the Levant: beginning of the Epipalaeolithic in the Levant. [71] 20 kya: Theorized earliest date of development of traditional Arctic clothing like those used by Arctic Eurasians and Inuit. [72]
Early childhood development is the period of rapid physical, psychological and social growth and change that begins before birth and extends into early childhood. [1] While early childhood is not well defined, one source asserts that the early years begin in utero and last until 3 years of age. [1]
The Gesell Developmental Schedules claimed that an appraisal of the developmental status of infants and young children could be made. The Gesell Developmental Schedule believes that human development unfolds in stages, or in sequences over a given time period. These stages were considered milestones, or the manifestations of mental development. [1]
This clickable timeline template, wikilinked to over 30 Wikipedia articles, translated into over 25 languages, edited by over 40 editors, transcluded to over 120 articles, was originally derived from {{Life timeline}} for inclusion in the article "Timeline of human evolution".
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Child development involves the biological, psychological and emotional changes that occur in human beings between birth and the conclusion of adolescence. It is—particularly from birth to five years— a foundation for a prosperous and sustainable society .