Clownfish: Clownfish are born male, but if the dominant female is removed from the group, the largest male transforms into a female to take her place
Image: Unsplash
Bearded Dragons: These lizards can switch to being female in high temperatures. A 2017 study suggested that temperature-induced changes in RNA's protein-making instructions might trigger this transformation
Image: Unsplash
Bluehead Wrasse: These reef fish can transition from female to male to assume dominant roles within their social groups
Image: Unsplash
Green Frogs: Green frogs typically develop the physical traits of their genetic sex as tadpoles, but under certain conditions, they may reverse and become adults of the opposite sex
Image: Unsplash
Yesso Scallops: These bivalve mollusks can alter their sex based on changes in their social environment
Image: X
Starlet Cushion Star: This sea star begins life as male and transitions to female as it grows larger
Image: X/@NautilusGib
Pacific Oysters: Can remain one sex, switch multiple times, or be both sexes simultaneously
Image: X
Swamp Eels: These tropical freshwater fish start life as females and later become males
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Star Tunicates: Rare among animals, star tunicates can reproduce both asexually (with just one parent) and sexually
Image: invasions.si.edu
Humpy Shrimp: This shrimp species begins life as male and transitions to female as a normal part of its life cycle