Zoo Aardvark Welfare: Nocturnal Insectivores with Unique Requirements

Aardvarks are unusual nocturnal mammals with highly specialised insectivore diets and exceptional burrowing abilities. Their welfare in zoos requires careful dietary management, appropriate substrate, and nocturnal management.

Key Facts

Aardvarks are native to sub-Saharan Africa and are the sole living member of the order Tubulidentata
They consume up to 50,000 ants and termites nightly using their long, sticky tongue and powerful claws
Aardvarks dig burrows at remarkable speed and require deep, diggable substrate as both a behavioural outlet and stress refuge
They are strictly nocturnal and highly sensitive to disturbance during daytime rest periods
Aardvark cubs stay with their mothers for approximately six months — a relatively long period for insectivores
Their skin is thick and largely hairless, requiring careful temperature management in captivity
Aardvarks have been called "ecosystem engineers" as their abandoned burrows provide shelter for dozens of other species

Welfare Considerations

Aardvark welfare in zoos is primarily challenging due to dietary provision and nocturnal management. Wild aardvarks travel 10-30 km nightly to consume sufficient insects — providing equivalent nutrition in captivity requires large quantities of specialised insectivore diet, supplemented with live insects for foraging enrichment. Substrate for burrowing is not optional enrichment but a core welfare requirement; aardvarks denied digging opportunities show stereotypic behaviour and heightened stress responses. Nocturnal house exhibits that allow natural activity while enabling viewing are the welfare-positive solution. Daytime exhibits that force aardvarks into activity during their rest period cause chronic sleep disruption, a significant welfare harm that is easily overlooked.

What You Can Do

Support zoos with nocturnal exhibits providing appropriate nighttime viewing while respecting aardvark activity patterns
Donate to African savanna conservation organisations protecting aardvark habitat and prey species diversity
Advocate for zoo accreditation standards requiring adequate digging substrate and nocturnal management for aardvarks
Learn about aardvark ecology and their role as ecosystem engineers providing burrows for many other African species
Support insect conservation that maintains healthy termite and ant populations essential for wild aardvark survival