In 2011, astrophysicist Neil deGrasse Tyson visited Chaser, a dog who lived with a retired psychology professor in South Carolina.
WATCH: Meet the dog who knows more than 1,000 words
Apr 11, 2025 | 4:28 AM
In 2011, astrophysicist Neil deGrasse Tyson visited Chaser, a dog who lived with a retired psychology professor in South Carolina.
