A new analysis of old data suggests that the endangered erect-crested penguin’s bizarre nesting habits—rejecting the first egg they lay—is because they can’t feed two chicks, and the second, larger egg has a better chance of success. Lloyd Davis of the University of Otago in New Zealand and colleagues describe these findings and their implications for penguin conservation in the open-access journal PLOS ONE on October 12, 2022.
Click here for original story, Why erect-crested penguins reject their first egg and lay a second one
Source: Phys.org