Some of the male frogs also had “several scars” on their backs, a sign of “aggressive behavior” or “combat” between males, the study said. A Boana quiriri, or Quiriri gladiator frog.

These largely terrestrial frogs may have been as ill-tempered and aggressive as their living relatives, the ceratophyrines of South America, scientists say. Ceratophyrines are nasty sit-and-wait ...

Make sure to bring the right weapons for protection! Swindon might be a peaceful city, but outside its borders, aggressive frogs and monsters await. Heading to such places without a weapon would ...

Photo: Imagn Hunter Dickinson was involved in an oddly aggressive incident during the second half of the Jayhawks' 74-61 win over the TCU Horned Frogs at Schollmaier Arena on Wednesday night.