That’s not all they throw out. We’ve had two litters of kittens at my shelter that were taken out of Dumpsters. With one, a volunteer SAW someone throw a box of six kittens in the dumpster, in July, in 100 degree heat. She ran out and confronted him and of course he denied it. She climbed into the Dumpster and looked frantically but could only find five of the kittens. They were about 1 week old at the time.
This was within 1 mile of four vets and two shelters. But this guy had to throw them into a Dumpster instead.
Nothing people do with respect to treating animals like garbage surprises me anymore.