Scientists discover new species of wasp in Costa Rica. Unlike most endoparasitoid wasps, the newly discovered species is without pointed mandibles. It can't chew its way out of its host body like other wasps. Scientists believe the species uses a series of ridges on its spine to saw its way out.

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Scientists discover new species of wasp in Costa Rica. Unlike most endoparasitoid wasps, the newly discovered species is without pointed mandibles. It can't chew its way out of its host body like other wasps. Scientists believe the species uses a series of ridges on its spine to saw its way out.