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Danna Staaf

Danna Staaf avatar consisting of their initials in a circle with a dark grey background and light grey text.

Danna Staaf is a science writer and author of Nursery Earth: The Wondrous Lives of Baby Animals and the Extraordinary Ways They Shape Our World, from which this piece was excerpted. Her last piece for Nautilus was “Animal Sex Determination is Weirder Than You Think.” She lives in San Jose, California, with her family and a frankly immoderate number of plush octopuses.

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Zoology

These Babies Are Parasites

How some animals figured out a free ride for their young.

June 7, 2023
Evolution

Animal Sex Determination Is Weirder Than You Think

Parasites, weather, and luck can play a role in determining whether some animals are male or female.

April 12, 2023