When an oily fish like an anchovy is consumed, what energy-related advantage does it offer compared to squid?

Answer

The penguin expends less energy to gain necessary calories

Anchovies are high-energy foods. Consuming them allows the penguin to achieve the required caloric intake while expending less overall hunting energy compared to consuming lower-energy items like squid, which must be eaten in greater volumes.

When an oily fish like an anchovy is consumed, what energy-related advantage does it offer compared to squid?
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