Autotomy

Discarded parts, such as lizard tails, often continue to writhe for up to 30 minutes to distract the predator. 🦀 Common Examples

Autotomy is a biological defense mechanism where an animal voluntarily sheds or discards a body part to escape a predator or avoid further injury. 🦎 Biological Mechanism autotomy

Rapid muscle contractions at the fracture site facilitate the break and provide immediate hemostasis (blood flow control). Discarded parts, such as lizard tails, often continue

The break occurs between two vertebrae (found in a minority of reptiles). such as lizard tails

While most famous in reptiles, this trait is found across several animal groups:

The break occurs across a specific vertebra (common in most lizards).

Autotomy is a highly controlled process that typically occurs at specialized weak points called or breakage planes .