Southern Namibia holds one of the last strongholds for a cat so small it could fit in a large shoebox. The black-footed cat, or Felis nigripes, is Africa’s smallest wildcat, and new observations show it depends on tunnels originally dug by springhares to keep its young safe during their earliest weeks. These nocturnal hunters face steep odds. Fewer than 10,000 individuals remain in the wild, and their secretive habits have long made detailed study difficult. Researchers therefore focused on how the cats solve the basic problem of finding secure dens in an open landscape.
A Cat That Outgrows Its First Home
Black-footed cats give birth in underground chambers and stay with their kittens for roughly the first six or seven weeks. Once the young are mobile enough to travel, the family shifts to new sites. The choice of den is not random. The cats consistently select burrows whose entrances measure between 10 and 27 centimeters across, a size that excludes both smaller rodent holes and the much larger excavations made by aardvarks or porcupines. Laser measurements of tunnel dimensions confirmed that nearly all of the dens used by the cats had been created by springhares, a rabbit-sized rodent native to the region. The cats simply move in after the original occupants leave.
Why One Species’ Old Home Becomes Another’s Nursery
Springhares dig extensive burrow systems that provide stable temperatures and protection from predators. When the rodents abandon a tunnel, the space remains intact for months or longer. Black-footed cats exploit this ready-made shelter rather than attempting to excavate their own. The lead researcher noted the practical importance of the relationship: “I can’t prove black-footed cats would disappear without springhares, but at this site they would be much more vulnerable.” Without these borrowed dens, the cats would face greater exposure during the vulnerable early weeks of kitten development.
Conservation Questions That Remain Open
The findings highlight a narrow but critical link between two species that share the same arid habitat. Springhare populations themselves face pressures from habitat change and occasional persecution as agricultural pests. Any decline in springhares could therefore reduce the availability of suitable dens for the cats. At the same time, the study leaves several unknowns. It is still unclear how far black-footed cats range in search of vacant burrows or whether they can adapt to other den types in areas where springhares are scarce. Continued monitoring will be needed to determine whether the observed dependence is typical across the species’ range or specific to the study area. The work underscores how even the smallest predators can rely on unexpected ecological connections to survive. Protecting the broader landscape that supports both springhares and black-footed cats may prove more effective than focusing on either species in isolation.
