The animal kingdom unites creatures with diverse eating habits and personalities, much like an airport food court or a pie-eating contest. Mingle with a multitude of exotic and endangered plants and animals with today's Groupon to the Rainforest Pyramid and Aquarium Pyramid attractions at Moody Gardens in Galveston. This deal is only valid from September 6 through September 30. Choose from the following group sizes:

• For $21, you get tickets to both attractions for one person (up to a $41.90 value).
• For $42, you get tickets to both attractions for two people (up to an $83.80 value).
• For $84, you get tickets to both attractions for four people (up to a $167.60 value).

Following $25 million in enhancements to create a strikingly authentic reproduction, Moody Gardens' Rainforest Pyramid proudly presents a family of giant Amazonian river otters, cotton-top tamarins, and a carnivorous pitcher plant—a stealthy hunter with impeccable table manners. Saki monkeys gibber, scarlet ibis preen, and sloths harrumph as parties navigate the 10-story triangular jungle's lush palms and flowering foliage, skirting the flowing waterfall and peering into the faux-ancient relics of a replica of Mayan ruins. All told, the pyramid houses creatures and features spanning African, Asian, and American rainforests, though it inexplicably skips Antarctica.

Visitors to the Aquarium Pyramid embark on a nautical tour of four distinct ocean habitats, with more than 10,000 fish, aquatic mammals, and well-dressed penguins capering for wide-eyed guests. Remark on the sharks and barracuda living in harmony in the pseudo-Caribbean underwater tunnel, but not before checking out the many penguins of the South Atlantic. Harbor seals frolic on the rocky shore in the North Pacific exhibit, and the recreated Great Barrier Reef is home to stunning anemones and lithe stingrays, known as the tennis rackets of the sea. Check online for the most up-to-date hours of operation.

After traversing the pyramidal biosphere and wading through a sea of nautical knowledge, Moody Gardens guests can embark on more domesticated endeavors on-site at the all-ages playzone and educational hub. Attractions include the sights and sounds of the MG 3D Theater, Ridefilm Theatre, and 4D Special FX Theater, which engages crowds with interactive effects and theater ushers who rip tickets and time fabric. Adventurers can also take a splashy spin on the Colonel Paddlewheel Boat or take a few classy swings on the scenic seaside golf course before unwinding, kicking back, and staying a while or a night at the lauded Moody Gardens Hotel and Spa.