Complex sentence: Hurd suggests that it is likely humans aided "X. sonorina" in its arrival in Hawaii, and today, the species can be found on all of the main Hawaiian Islands except for Kauai.
Split into simpler sentences: Hurd suggests that it is likely humans aided "X. sonorina" in its arrival in Hawaii. Today, the species can be found on all of the main Hawaiian Islands except for Kauai.