Pliny on the portents of the bees

"Bees provide signs of future events both private and public, when a cluster of them hangs down in houses and temples — portents that have often been presaged by momentous events. They settled on the mouth of Plato when he was a young child and foretold the charm of his very pleasing eloquence. They settled in Drusus' camp at the time of our great victory at Arbalo: indeed augurs, who always think the presence of bees is a bad omen, are not invariably correct."

[Pliny the Elder, Natural History, Book 11, section 55, translated by John F. Healy]

Pliny on the tribe of Psylli

"There is a...tribe in Africa called the Psylli after King Psyllus, whose tomb is in the region of Greater Syrtes, as Agatharchides records. They produce in their bodies a poison deadly to snakes, and its odour puts snakes to sleep. Their custom was to expose children at birth to extremely fierce snakes and to use these snakes to test the faithfulness of their wives since snakes do not flee people born of adulterous blood."

[Natural History, Pliny the Elder, Book 7, section 14; translated by John F. Healy]