Newly Discovered Dinosaur: Manipulonyx, a Tiny Egg-Cracking Predator | Quick Digest

Newly Discovered Dinosaur: Manipulonyx, a Tiny Egg-Cracking Predator | Quick Digest
Scientists have officially named Manipulonyx reshetovi, a dog-sized dinosaur from Mongolia, after its unique forelimb structure, equipped with claws and wrist spikes. This specialized 'hand' is hypothesized to have been used for gripping and cracking open dinosaur eggs. The discovery offers new insights into the varied feeding strategies of prehistoric theropods.

Manipulonyx reshetovi, a new dinosaur species, was officially named in 2025.

This dog-sized theropod was unearthed in Mongolia's Gobi Desert.

Its forelimbs feature unique wrist spikes and claws, forming a 'multitool'.

Scientists hypothesize its hand was adapted for gripping and cracking dinosaur eggs.

The discovery provides evidence for ovivory (egg-eating) among alvarezsaurids.

The fossil also had associated eggshell fragments at the excavation site.

A significant paleontological discovery has brought to light *Manipulonyx reshetovi*, a newly described dinosaur species officially named in 2025 by researchers at the Zoological Institute of the Russian Academy of Sciences. This small theropod, roughly the size of a dog, was unearthed from the Nemegt Formation in Mongolia's Gobi Desert, with its fossil dating back approximately 67 million years to the Late Cretaceous period. What makes *Manipulonyx* particularly remarkable are its uniquely specialized forelimbs, featuring claws and distinct wrist spikes. These anatomical features have been likened to a 'prehistoric multitool' by paleontologists. Lead author Alexander Averianov highlighted that the wrist spikes were directly articulated with the bones, a characteristic not observed in other known alvarezsaurids. The scientific hypothesis, supported by the fossil's anatomy and the presence of eggshell fragments at the excavation site, suggests that *Manipulonyx* likely utilized its specialized hands to grip and crack open the eggs of other dinosaurs, possibly under the cover of night. This interpretation aligns with broader discussions within the scientific community regarding the feeding habits of the Alvarezsauridae family, to which *Manipulonyx* belongs. While some alvarezsaurids were previously thought to be insectivores, the evidence for *Manipulonyx* strongly supports an ovivorous (egg-eating) diet. This discovery enriches our understanding of dinosaur diversity and specialized predatory adaptations during the Mesozoic Era. The article by Indian Defence Review accurately reports on these scientific findings.
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