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The researchers focused on three fossilized Gerontoformica gracilis ants, preserved in amber from Myanmar.

Euglena gracilis, often regarded as a “superfood,” is a promising microalga with many health and nutritional benefits.

In a recent study, researchers from Japan found an efficient and low-resource approach to trigger a reddening reaction in E. gracilis using red light and a bonito fish-based culture medium.

This reaction is a sign of higher and diverse carotenoid content ratio, meaning the proposed method could help turn E. gracilis into an even more nutritious food source.

A species of edible microalgae, E. gracilis has a rich nutritional profile, with a unique combination of vitamins, fibers, lipids, and proteins.