Gladis the killer whale leads 'orca uprising' - but experts say it's not them we should blame
![Gladis the killer whale leads 'orca uprising' - but experts say it's not them we should blame](https://i2-prod.mirror.co.uk/incoming/article32839273.ece/ALTERNATES/s615/0_or4JPG.jpg)
Orcas in the Strait of Gibraltar, led by an orca named Gladis Blanca, are attacking boat rudders, but researchers attribute it to defensive actions rather than hostility