Head to head
Rock Monitor vs Nile Monitor
Rock Monitor
VS Nile Monitor
The rock monitor and Nile monitor are two large African monitor lizards in the genus Varanus that share much of the continent but not the same habitat.
| Rock Monitor | Nile Monitor | |
|---|---|---|
| Scientific name | Varanus albigularis | Varanus niloticus |
| Build | A heavy-bodied lizard with a short, blunt snout, a thick neck, and strong claws, growing to well over a metre long | Among the largest lizards in Africa, regularly well over a metre long, and some considerably longer |
| Diet | Snails, insects, millipedes, eggs, small mammals, reptiles, and carrion, using blunt teeth to crush hard prey | Fish, frogs, crabs, snails, insects, birds, small mammals, and reptile eggs, including crocodile eggs |
| In the water | More at home on land and among rocks | A strong, capable swimmer that uses a laterally flattened tail to dive and hunt aquatic prey |
| Defence | Inflates its body, hisses loudly, and lashes its tail | A powerful, whip-like tail strike, a hard bite, and sharp claws |
| Habitat | Savanna, scrub, and rocky ground, sheltering in crevices, burrows, and hollow logs | Closely associated with rivers, lakes, and wetlands |
| Range | Southern and eastern Africa | Sub-Saharan Africa, with an introduced population in southern Florida |
| Conservation status | Least Concern, though hunted and traded in some areas | Least Concern |
Rock Monitor vs Nile Monitor: common questions
Which monitor swims better?
The Nile monitor, which uses a laterally flattened tail to swim and often dives to escape danger or hunt.
Which one eats snails?
The rock monitor, whose blunt teeth are well suited to crushing snails and the hard bodies of beetles and millipedes.
Which one raids crocodile nests?
The Nile monitor, which digs up and eats crocodile eggs, sometimes working in groups to distract the guarding female.