Introduction
The African Spurred Tortoise (Geochelone sulcata), commonly known as the Sulcata Tortoise, African Spurred Tortoise, or Furrowed Tortoise, originates from the Sahel region of Africa along the southern edge of the Sahara Desert. This region includes parts of Ethiopia, Chad, Niger, Mali, southern Mauritania, and Senegal.
Sulcata tortoises naturally inhabit arid savannahs and semi-desert environments. They obtain much of their moisture from the food they consume and conserve water by producing very little liquid urine, developing thick skin that minimizes moisture loss, and digging burrows averaging approximately 30 inches deep to escape extreme daytime heat.
The Sulcata is the world’s third-largest land tortoise, surpassed only by the Galapagos and Aldabra tortoises. Adults commonly exceed 24 inches in shell length and may weigh 150 pounds or more. Most individuals reach full adult size between 10 and 15 years of age.
Selecting a Healthy Sulcata Tortoise
Most Sulcata tortoises available through pet stores are captive bred.
When selecting a healthy tortoise, look for:
- Active and alert behavior
- Strong appetite
- Bright, clear eyes without discharge
- Firm shell without soft areas
- Clean vent without staining or discharge
- No nasal or oral discharge
- Quiet breathing without wheezing, whistling, or gurgling
These signs help identify healthy animals and may indicate the absence of respiratory disease.
Sex Identification
Male Sulcata tortoises generally:
- Grow larger than females
- Have longer, thicker tails
- Possess a more concave plastron
- Reach sexual maturity at approximately 14–15 inches
Female Sulcata tortoises generally:
- Have shorter tails
- Possess a wider, rounder anal notch
- Reach sexual maturity at approximately 17–18 inches
Both males and females possess large gular projections beneath the neck, although these structures are generally larger and more pronounced in males.
Housing
Sulcata tortoises require:
- Clean, dry housing
- Fresh food and water
- Full-spectrum lighting
- Warm and cool areas for thermoregulation
- A hide or simulated burrow
- Protection from predators and environmental hazards
Juveniles may initially be housed in large plastic tubs before being moved into larger tortoise tables or dedicated tortoise rooms as they grow.
Outdoor enclosures are strongly recommended whenever climate allows because they provide natural sunlight, grazing opportunities, and space for digging.
Avoid fencing made from chain link or lattice, as these materials may injure both the tortoise and the enclosure.
Temperature
Sulcata tortoises prefer daytime temperatures between:
70–90°F
Provide:
- Basking area: 85–95°F
- Cool area: 65–75°F
Recommended daylight period:
12 hours
Nighttime temperatures may safely decrease to approximately 60°F, although temperatures near 70°F are preferred.
Radiant heat sources such as heat lamps and ceramic emitters are preferred over heat rocks and under-tank heaters.
Use thermometers to monitor enclosure temperatures regularly.
Cold temperatures increase the risk of respiratory disease and poor digestion, while excessive heat may cause dehydration.
Hibernation
Sulcata tortoises do not hibernate.
Although they may experience periods of winter cooling or summer estivation, they remain active throughout the year.
Lighting
Provide full-spectrum lighting that includes:
- UVA
- UVB
Natural sunlight remains the preferred source whenever possible.
Indoor tortoises require supplemental UV lighting positioned approximately 12–18 inches from the animal.
Remember that ordinary glass and plastic block ultraviolet light.
Mercury vapor bulbs provide:
- Heat
- UVA
- UVB
The proper distance between bulb and basking area depends upon bulb wattage.
Hydration
Although adapted to dry environments, Sulcata tortoises still require adequate hydration.
Provide:
- Warm water soaks once or twice weekly for 5–10 minutes
- Clean shallow drinking water at all times
Warm soaks also stimulate urination and defecation.
Outdoor tortoises may benefit from shallow pools or gentle spraying during warm weather.
Burrows and Hide Areas
Hide areas provide security and aid digestion.
Suitable hides include:
- Cardboard boxes
- Plastic containers
- Small shelters
- Plastic dog houses for outdoor adults
Outdoor burrows should never flood and should be monitored regularly for structural safety.
Outdoor fencing should be:
- Solid
- Buried at least 2 feet underground
Substrate
Suitable indoor substrates include:
- Newspaper
- Hay
- Sand
- Commercial pelleted substrates
Avoid substrates that may cause intestinal obstruction, including:
- Pebbles
- Tree bark
- Crushed walnut shells
- Corncob bedding
- Silica sand
Small foreign objects should also be removed from the enclosure because Sulcatas commonly attempt to eat them.
Diet
African Spurred Tortoises are herbivores.
Natural foods include:
- Grasses
- Hay (Timothy, Bermuda, Buffalo, Fescue)
- Prickly pear cactus (Opuntia)
- Alfalfa
- Clover
- Mulberry leaves
- Grape leaves
- Romaine lettuce
- Collard greens
- Endive
- Dandelion greens
- Mustard greens
- Occasional fruit
Grazing pesticide-free grasses provides the best natural fiber source.
Spinach, kale, rhubarb leaves, collard greens, and mustard greens should be offered only in limited amounts.
Avoid toxic plants including:
- Foxglove
- Mistletoe
- Oleander
- Poinsettia
- Rhododendron
- Yews
Preventative Health Care
A reptile veterinarian should examine every new Sulcata shortly after purchase.
Routine examinations include:
- Physical examination
- Body weight
- Fecal analysis
- Diet review
- Husbandry evaluation
Annual veterinary examinations are recommended.
Seek veterinary care immediately if any of the following signs develop:
- Shell pyramiding
- Soft or flaky shell
- Swollen limbs
- Diarrhea or foul-smelling stool
- Difficulty passing urine or feces
- Eye, nose, or mouth discharge
- Wheezing, gurgling, crackling, or hissing during breathing
- Open-mouth breathing
- Poor appetite
- Weakness
- Depression
- Lethargy
Salmonella
Owners should consult their veterinarian regarding Salmonella and appropriate hygiene practices when handling reptiles.