When potential food is all around, a good nose can help pick out the best tasting dinner. The animals in the Houston Zoo’s Hoofstock collection have just that – a keen sense of smell. Animals can tell which plants are sweet and delicious or bitter and noxious just from their odors. Scent marks on trees and rocks can also signal a predator, rival or potential mate is nearby.

Such a strong sense enables a wide variety of enrichment opportunities for the keepers to maintain an interesting exhibit for the residents within. Spices, perfumes, and other smells are conservatively sprinkled or sprayed in a few spots to attract and pique the interest of the animals. Different types may illicit different reactions. Calvin Klein’s Obsession™ has been proven to be one that animals like to rub on themselves. Other colognes will keep the duikers busy all day re-marking their exhibits with the glands located on their faces. Some spices may be licked off for a unique taste while others merely make the animals sneeze.
Colognes and seasonings aren’t the only options for olfactory enrichment. Moving soiled bedding from a female into the exhibit of a male may cause great interest due to the female’s pheromones. In contrast, urine from a predator can illicit a reaction that a lion or leopard may be near.
Perhaps most importantly, a variety of smells and their locations can encourage the animals to further explore and move about their exhibits. Natural behaviors are a key element of the Hoofstock enrichment program and these foraging behaviors are indicative of how wild herbivores might spend their day. What are your favorite smells and how do they make you behave?
By Tim Junker, Hoofstock Keeper
Enrichment Day at the Houston Zoo is Saturday, September 24th. This is a great opportunity to come and join in the fun. Come out and see all of the animals enjoying special enrichment, hear keeper chats and loads of fun games for kids of all ages! Enrichment Day celebrates the meaning and joy of enriching our animals and visitors!
Find your favorite animals and see what they’re wishing for at Amazon.com. Then just sit back, shop, click and send your animal of choice a wonderful gift to enrich their life! They really do appreciate it and so does the Houston Zoo!
