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Global Hantavirus Surveillance: Transmission, Trends, and Prevention

The video showcases the classic visual cliff experiment from 1960 by Eleanor J. Gibson and Richard D. Walk, where a crawling infant refuses to cross a glass surface over a checkered "drop-off," demonstrating innate depth perception and height aversion as early as 6 months.
Video frames capture the baby's hesitation and distress signals, like crying, while adults observe; this aversion appears in 90% of tested infants, per the original study, indicating an evolutionary safeguard against falls.
Modern research, including virtual reality adaptations in peer-reviewed journals like Infancy (2018), upholds these findings, showing similar responses in diverse populations and underscoring how visual cues alone trigger fear without prior falls.

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