Sam Litzinger signs off from his Talking Animals podcast for the last time -- and what better way to end the show than to talk to another animal lover -- Jane Goodall.

Obesity is a problem in America -- but not just among humans. Plus -- some good news for our national bird. Sam Litzinger features pieces from Don Dahler and Chip Reid on this week's Talking Animals.

What exactly does it mean to be a livestock sitter, and, why does such a job exist? Nikki Battiste went to Massachusetts to find out. Plus -- Sam Litzinger discusses obesity in household pets in "Ask a Vet." This and more on this week's Talking Animals.

Could the woolly mammoth make a comeback? Plus - Manuel Bojorquez reports on the latest efforts to save Florida's coral reef. Sam Litzinger features his piece and more on this week's Talking Animals.

The Trump administration's reversal -- then re-reversal of an elephant trophy ban has sparked a worldwide debate. Don Dahler reports. Plus -- is it normal to feel guilty when it is time to put a pet down? Psychology Today's Adam Clark joins Sam Litzinger on this week's Talking Animals. --- Tweet: https://twitter.com/CBSNewsRadio/status/939921988717629445

Officials at Yellowstone National Park have recruited grizzly bears to test the strength of garbage cans and coolers - which have been destroyed by bears looking for food. Carter Evans reports. Plus - a rare butterfly species is making a comeback in the Bay Area. John Blackstone has the story. Sam Litzinger features these pieces and more on this week's Talking Animals.

The pandas at The National Zoo might have a better health care plan than you do. Sam Litzinger features Chip Reid's piece on this week's Talking Animals.

There's a program in San Antonio, Texas that is helping pit bulls shed their bad dog image. Sam Litzinger features Omar Villafranca's piece on this week's Talking Animals.

The MGM lion is not the only wild cat in Hollywood. Carter Evans reports. Plus -- Sam Litzinger learns why it is important to spay and neutered your pets.

The feral hog population is becoming a hog-sized problem in Texas. Don Champion has the story. Plus - Sam Litzinger learns more about Happy Tails -- a program that provides the elderly with a four legged companion - for a couple of hours.