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19 August 2026
- 01
An octopus has three hearts and blue blood. Two hearts pump blood to the gills, and the main heart stops beating whenever it swims — which is why an octopus prefers to crawl.
Monday, 24 August 2026
Monday, 24 August 2026
19 August 2026
An octopus has three hearts and blue blood. Two hearts pump blood to the gills, and the main heart stops beating whenever it swims — which is why an octopus prefers to crawl.