Azuki bean beetles lay larger male eggs under climate and bacterial stress

Azuki bean beetles lay larger male eggs under climate and bacterial stress

Researchers at Kyushu University have found that when azuki bean beetles infected with Wolbachia bacteria are exposed to a simulated climate change environment—characterized by elevated temperature and carbon dioxide—they tend to produce larger eggs to enhance the survivability of their offspring. Interestingly, these larger eggs gave rise exclusively to male larvae.