Simplify the following text for a Grade 6 native English-speaking person.
Original: The Lord Howe Island stick insect , Dryococelus australis , is a species of stick insect which lives on the Lord Howe Island Group . It was thought to be extinct by 1930 , only to be rediscovered in 2001 ( this phenomenon is known as the Lazarus effect ) .
Simplified: The Lord Howe Island stick insect ( Dryococelus australis ) was thought to have died out in 1930 , but more were found in 2001 .