The goal of the 'brain in a bottle' was to produce a biological tool that can be used to investigate the workings of the brain, better understand brain diseases, and test out new drugs.
Other experts described the work as "audacious", "exciting" and "stunning".
One predicted the future creation of a simple animal-like brain that could be linked to sense organs and had the ability to learn.
More top news
The alligator, estimated to be 15ft-long, was filmed wandering around a golf course where it is said to be a "mascot".
Michael Jace faces a sentence of 40 years to life in prison for shooting dead his wife in front of their children.
The 33-year-old British actress will assume the lead role in Mary Poppins Returns, due for release in 2018.