telltale

Exposure to the acid causes serious neurological issues in sea lions, including seizures, disorientation and a telltale head-tilting behaviour known as "stargazing."

Other vehicles lay abandoned, their windshields adorned with the telltale spider webs of bullet holes.

In July, El Sobrante staff told the local air district the landfill had experienced a rise in highly flammable hydrogen gas and lung-aggravating dimethyl sulfide emissions — both telltale signs of abnormal temperatures inside the landfill.

Hubble worked hard, taking images of spiral nebulae every clear night and looking for the telltale variations of Cepheid variables.

Beneath the surface of this country’s seeming strength, we could already see the telltale signs of decline that had led to the collapse of those earlier empires.