Alekians are the natural enemies of Namekians. The Alekians invaded Namek and caused the Ajesa Trees to almost be destroyed and almost destroyed the planet. Grand Elder Guru survived and gave birth to Moori and Nail. They then gave birth to more Namekians and rebuilt their planet. The Alekians became furious and they invaded Namek after the Frieza Saga but couldn't find it. They didn't know about New Namek and their search is in vain.