Round Frogs Sport Shredded Pecs (image) Florida Museum of Natural History Share Print E-Mail Caption Forward burrowers use pointed snouts and powerful forelimbs bolstered by strong pectoral muscles to scrabble into the earth. They're often orb-shaped to improve their ability to hold water. Credit Rachel Keeffe Usage Restrictions Please credit Rachel Keeffe. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.