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A sound defense: Noisy pupae puff away potential predators

In a study published in the Journal of Experimental Biology, researchers from Kobe University found that hawkmoth larvae and pupae produce defensive sounds when stimulated. These sounds are released through respiratory openings and resemble snake warning signals, potentially helping the insects evade predators.

SourceKobe University·JournalJournal of Experimental Biology·TypeExperimental study·DateDec 7, 2025

Variation inside and out: cell types in fruit fly metamorphosis

A study published in PLOS Computational Biology reveals that different cell types and variation within these cells play a crucial role in muscle remodeling during Drosophila development. The findings show that sarcolytes, hemocytes, and fat body cells work together to break down larval muscles and scatter the fragments.

SourceThe University of Osaka·JournalPLOS Computational Biology·TypeComputational simulation/modeling·DateAug 28, 2025

Fruit fly pest meets its evolutionary match in parasitic wasp

A parasitic wasp has evolved to perfectly target a common fruit fly pest, demonstrating key principles of ecologically driven evolution. The Trichopria drosophilae wasp overcomes the pest's defenses by producing venom and specialized cells that speed up digestion and increase nutrition for its young.

SourceeLife·JournaleLife·DateApr 23, 2024

Machine learning to the rescue

The team aims to develop a sorting-machine prototype using pupae images and machine-learning algorithms to process tens of thousands of images daily. They also design a robot to sort the pupae based on the result of the algorithm, with the goal of reducing tsetse populations in sub-Saharan Africa.

For ant pupae, status means being heard

Ant pupae employ acoustics to signal their rightful place in the colony's hierarchy, influencing adult ants' behavior. Researchers discovered that pupae make sounds similar to adults with 'file and scraper' organs, essential for maintaining social status.

SourceCell Press·JournalCurrent Biology·DateFeb 7, 2013

Parasitoid turns its host into a bodyguard

A parasitoid wasp induces its moth caterpillar host to stop feeding, remain close to the pupae, and defend against predators, resulting in increased pupae survival. The caterpillar's behavioral changes appear to outweigh potential risks of increased transmission for the parasite.

SourcePLOS·JournalPLOS ONE·DateJun 3, 2008

Clever Chemistry Protects Beetle Babies

A team of Cornell University researchers discovered that beetle pupae can create hundreds of deterrent compounds using combinatorial chemistry. The pupae secrete these complex chemicals through microscopic body hairs, thwarting most predators and ensuring their survival in the field.

SourceCornell University·JournalScience·DateJul 16, 1998