Researchers have identified a new class of insect-killing toxins, called Streptomyces antiquus insecticidal proteins (SAIPs), produced by certain ancient Streptomyces bacteria. These toxins target a ...

Giant prehistoric insects may not have depended on high oxygen levels after all. Scientists now think something else must ...

Scientists have discovered an ancient insect-killing toxin, produced by certain Streptomyces bacteria, that is structurally similar to diphtheria toxin but harmless to humans. Named Streptomyces ...

Ancient Earth once buzzed with enormous dragonfly-like insects, and scientists long thought high oxygen levels made their size possible. A new study overturns that idea, revealing insect flight ...