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🤯 Did You Know (click to read)
Cold water can hold more dissolved oxygen than warm water, potentially supporting larger body plans.
Polar gigantism describes the tendency for some cold-water species to grow larger than their temperate relatives. Higher dissolved oxygen levels and slower metabolic rates in polar seas are thought to support this growth pattern.
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💥 Impact (click to read)
In Antarctic ecosystems, several invertebrates including sea spiders and isopods exhibit unusual size increases. The colossal squid may represent one of the most extreme examples of this biological trend.
Studying polar gigantism helps scientists understand how environmental variables such as temperature and oxygen availability influence body size evolution across marine species.
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