Jeff Langlois / The Palm Beach Post via ZUMAPRESS.com
A pod of spinner sharks is seen through a wave at Midtown Beach on Thursday.
Several beaches along South Florida's Atlantic coast line were closed after thousands of sharks were seen migrating in the waters.
The sharks were migrating from Boca Raton to Jupiter since the beginning of March, marine biologists told NBC Miami.
Thousands of sharks, heading north after migrating to the south for winter, prompted beach closures along South Florida's Atlantic coastline. NBC's Brian Williams reports.