Rhea (bird) males of "R. americana" can reach tall at the head, at the back and can weigh up to , The lesser rhea is somewhat smaller as they are only tall at the back. Their wings are large for a flightless bird () and are spread while running, to act like sails. Unlike most birds, rheas have only three toes. Their tarsus has 18 to 22 horizontal plates on the front of it. They also store urine separately in an expansion of the cloaca. Rheas are from South America only and are limited within the continent to Argentina, Bolivia, Brazil, Chile,
Love Is a Four Letter Word (album) indicates "generally favorable reviews". Stephen Thomas Erlewine from AllMusic gave the album 4 out of 5 stars, writing, "Mraz pushes himself into new territory, creating music that's perilously close to sounding seductive." Kyle Anderson wrote for "Entertainment Weekly" that "he tiptoes the line between hammock-strung wisdom and twee naïveté with such goofball charisma that otherwise forgettable love-each-other-doodles become sweetly breezy anthems." Matthew Horton from Virgin Media wrote that "It's all light as air, of course, and corny as hell but Mraz isn't here to kick James any statues. If you're after unchallenging whimsy with the odd sparky arrangement he'll continue