Cloning is one method discussed as an option for bringing extinct species back.

Humans arrived over 2,000 years ago, bringing with them invasive species such as goats, pigs, cats, and sheep.

For instance tourists are not permitted to bring non-native species to Antarctica.

Colonists brought Narcissus jonquilla and similar species and selections when they came.

Humans bring species into contact that would otherwise never have met for millenia.

Climate change brings new southern species to the Åland Islands.

New Zealand is today a world leader in the techniques required to bring severely endangered species back from the brink of extinction.

Compare the 'cooperation' over fishing that has brought several common species close to extinction.

"Let's not bring species into this," Crusher told him.

They've got a mission to bring other intelligent species to a higher rung on the evolutionary ladder.