Oct 12, 2022
In 'bizarre behavior,' New Zealand penguins lay one egg, reject it, and then lay another. Now, scientists know why.
Researchers have cracked the case of why erect-crested penguins in New Zealand reject their first-laid eggs. These penguins, which mate in monogamous pairs, lay an egg only to abandon it in favor of a second egg, which they then incubate until it hatches. Laying eggs is energy intensive, and so...