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Earth’s Earliest Animals May Have Thrived Too Easily to Evolve

10 June 2026 at 20:25
Artist’s reconstruction of the Fractofusus community: the bottom right features a large Fractofusus around which there are 5 to 8 medium specimens clustered; each of the medium specimens also has small specimens clustered around them; the small specimens therefore form an independent double cluster pattern, namely clusters of clusters. Image credit: C.G. Kenchington.

Fossils from some of the oldest-known animals on Earth, dating from 574 million years ago (Ediacaran period), suggest that cloning, not competition, dominated the Ediacaran seas, slowing evolution until environmental stress helped drive the rise of sexual reproduction and a burst of biodiversity.

The post Earth’s Earliest Animals May Have Thrived Too Easily to Evolve appeared first on Sci.News: Breaking Science News.

Voici dans quelle catégorie votre chat vous classe selon un spécialiste de l'éthologie féline

5 June 2026 at 17:00
Votre chat vous voit comme une mère de substitution de grande taille. Pas comme un maître, ni comme un chef, pas même comme un ami au sens humain du terme. Cette révélation, issue de travaux en éthologie féline, est à la fois déconcertante et intéressante. Que dit vraiment la science sur la...

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