Living Bulldozers: Caring for Sulcata Tortoises

Lydia Wolfe

You hold a little hatchling in the palm of your hand, and it is, um, it is maybe three inches long. Adorable, right? But then two years later, it has tripled in size, and eventually you are looking at a thirty inch, hundred and fifty pound behemoth in your backyard.

Michael Arnold

Yeah, people really underestimate the Sulcata tortoise, or the African spurred tortoise. These animals are the living bulldozers of the savanna.

Lydia Wolfe

Living bulldozers. That is not an exaggeration, is it?

Michael Arnold

Not even a little bit. I mean, I have seen a full grown adult just walk right through a standard wooden garden fence because it saw a fresh patch of grass on the other side. They do not turn around. They just push through.

Lydia Wolfe

Wait, it literally demolished a fence?

Michael Arnold

Snapped the boards right off. That is why building a Sulcata enclosure is closer to heavy engineering than traditional pet ownership.

Lydia Wolfe

Heavy engineering. Okay, so what does that actually look like if a chicken wire fence or wood paneling just gets flattened?

Michael Arnold

Well, for starters, the walls need to be at least four feet tall in every direction, made of heavy reinforced materials. But the real challenge is underground. Sulcatas are adapted to the semi arid Sub Saharan savanna, so they dig massive burrows to escape heat.

Lydia Wolfe

So if you do not sink those walls deep into the earth...

Michael Arnold

They will tunnel right under them and come out in your neighbor's yard, or under your driveway. You have to extend the perimeter underground.

Lydia Wolfe

Wow. And what about inside the pen? I hear people talk about flipping hazards?

Michael Arnold

Right, if a tortoise flips onto its back in the heat, it can be fatal. So you use low angle stone ramps for elevation changes. That physics setup keeps them upright, and as a bonus, the rough stone naturally files down their beaks and claws as they walk over it.

Lydia Wolfe

Oh, that is clever. Like a built in manicure. And straw bale hides for burrows?

Michael Arnold

Exactly. Sturdy straw bale hides replicate those natural underground chambers without letting the earth collapse on them.

Lydia Wolfe

Now, one thing that throws off a lot of reptile keepers who are used to, say, native turtles, is brumation. Sulcatas do not hibernate, do they?

Michael Arnold

Zero brumation. They remain active, hungry, and mobile three hundred and sixty five days a year.

Lydia Wolfe

So even in the dead of winter, you have to maintain a hot zone?

Michael Arnold

Continuous, high intensity UVB lighting for calcium absorption, a localized basking spot up to one hundred degrees Fahrenheit, and ambient temperatures that never, ever drop below seventy degrees. If they do not get proper UV, they develop Metabolic Bone Disease, which warps their scutes upward into shell pyramiding.

Lydia Wolfe

Uh, what about humidity? Because Sub Saharan sounds bone dry, but reptiles can be tricky.

Michael Arnold

It is a delicate balance, forty to sixty percent ambient humidity. If it gets too wet, you get shell rot. But if it is too dry or dusty, you run into a huge biological issue.

Lydia Wolfe

Wait, what issue?

Michael Arnold

Tortoises lack a diaphragm and bronchial cilia. That means they cannot clear their airways. They literally cannot cough. So a mild respiratory infection can quickly become fatal.

Lydia Wolfe

They can't cough? Oh, wow. So any fluid buildup in the lungs just sits there.

Michael Arnold

Precisely. And their diet is just as strict. People think, oh, it is a big turtle, let us feed it lettuce and apples.

Lydia Wolfe

But fruit is a huge mistake, right?

Michael Arnold

High sugar causes severe organ damage. They need a strict grassland diet, Timothy hay, orchard grass, prickly pear cactus pads, dandelion greens. And you have to avoid high oxalate greens like spinach, parsley, or collard greens.

Lydia Wolfe

Because oxalates bind to calcium.

Michael Arnold

And form deadly kidney stones instead of building a strong shell.

Lydia Wolfe

You know, working with wildlife education over the years, I saw so many reptile sanctuaries overflowing with surrendered adult Sulcatas. People get them as tiny babies, and then fifty years later, the tortoise is healthy, has outlived its original owner, and the family has no idea what to do with a hundred and fifty pound herbivore.

Michael Arnold

They routinely live into their seventies and can exceed one hundred years. Bringing one home is literally a multi generational contract.

Lydia Wolfe

You basically need a legal line in your will specifying who inherits your living bulldozer. But if you have the land, the resources, and the commitment, they really are remarkably curious, docile companions.

Michael Arnold

They sure are. Just make sure your walls are buried deep.