Dora is a Latina. According to a Nickelodeon spokesman, "She was developed to be pan-Latina to represent the diversity of Latino cultures." Dora the Explorer as a tween, as seen after being revealed in 2009.
On March 8, 2009, Mattel and Nickelodeon announced that Dora will receive a tweenage makeover, switching from a young age to a teenage attending middle school. Initially, it was announced that the new look would not be revealed until late 2009, but after a short controversy, the tween Dora was unveiled on March 16, 2009.
The change was criticized by one writer that did not support the feminization of Dora's image.
In 2012, a CGI opening was created for new episodes of the series.
In 2009, Mattel and Nickelodeon introduced a preteen version of Dora, with four friends named Naiya, Kate, Emma, and Alana, who call themselves the Explorer Girls. The Explorer Girls were included in the Dora and Friends spin-off in 2014.
An episode was aired on television for Dora's Explorer Girls on August 7, 2011 but Nickelodeon has yet to air this episode. And now they call this episode the pilot episode for Dora and Friends: Into the City the episode was titled: Our First Concert. This episode can still be found online.
A website for Dora's Explorer Girls went on Nick Jr. in 2009 and lasted until 2009-2012. The website was titled doragirls.com. Although this is their own website it was still on Nick Jr. This website can still be found on ☀http://wayback.archive.org/web/20111006003123/http://www.nickjr.com/doragirls/?xid=dora-girls-tune-in