Volunteers have set up a "toad detour" in Philadelphia to ensure the safety of thousands of baby toads as they hop across a busy residential street.

They are trying to get to woods on the other side during their annual migration through dense vegetation from an abandoned reservoir where they were born.

The roadblock reroutes cars so the animals - each about the size of a raisin - can cross the two-lane road safely.

Sign up to our free newsletters

Get the best updates straight to your inbox:
Please select at least one mailing list.

You can unsubscribe at any time by clicking the link in the footer of our emails. We use Mailchimp as our marketing platform. By subscribing, you acknowledge that your information will be transferred to Mailchimp for processing.