Baby Dolphins Three, Four, Five and Six Have Arrived!

The 10,000 Islands Dolphin Research Project on board the Dolphin Explorer has been monitoring the feeding habits, travel range, social habits, survival rate, genealogy, population accrual, and overall health of the bottlenose dolphins of north Marco Island, Florida, for nearly 21 years. Their daily documentation is entered into a database that sends quarterly reports around the globe regarding these resident dolphins. The study continues….

What an awesome two weeks to start the month of October for our crew! This is an exciting time of the year because it is birthing season for our resident bottlenose dolphin population. That’s right, these cetaceans do not migrate and stay in the North Marco waters and immediate surroundings.

Over the past 21 birthing seasons, we have documented that the majority of offspring are born in September, October, and November, with a few born in August or as late as December or January, but 90+% are born in those three primary months. 2026 has been consistent with the previous years so far.

In August, we documented our mom Rakes (all of our dolphins have names ) with a new calf that was named Ash, seen for the first time on August 24. This is Rakes fifth offspring and she is a very successful mother and great teacher to her young.

On September 22, the first day of fall, Patch’s Twin made an appearance with a newborn, which was aptly named Autumn. This mom now has seven offspring, one of the most productive females in our 21-year study. Her family is Cloud (2003), Stellar (2006), Cameron (2009), Phineas (2013), Petosky (2017), Needles (2020), and 2026 newborn Autumn. Patch’s Twin is also a grandmother of two.

Beginning September 30, an explosion began! In a matter of nine days, our survey team documented four new babies, with one belonging to a first-time mom! Here they are:

On September 30, a very consistent mom, Cosmo, showed up with a brand new baby, no more than two to three days old at our first sighting. This newborn was named Nebula and is Cosmo’s sixth offspring. Her family is Hunter (2011), Honeymoon (2015), Humboldt (2018), Dakota (2021), Galaxy (2023), and in 2026 Nebula arrived.

On October 5, we witnessed two moms traveling together, both with new babies! First up, mom Destiny, a daughter of Tattoo, came by with her fourth calf and it was named Lot. Destiny’s other children are Irma (2017), Mango (2020), and Kismet (2023). She is currently producing a new baby every three years, typical of a young, healthy female.

Traveling with Destiny and Lot was ever-present mom Dolly. She, too, has a newborn by her side that was named Hattan. This is Dolly’s fifth baby and her family also consists of Llama (2013), Parton (2016), Kalani (2019), and Madison (2024). You’ll notice that Madison was born in 2024 and the new calf in 2026, only two years apart. This is very rare in our findings and only the second time in 21 years that we have seen a mom give birth with only that two-year gap between babies. Extremely interesting!

Last, and definitely not least, young female Ollie reached maturity within the last two years and, right on schedule, gave birth to her very first offspring, who was named Ozzie. Females typically mature here at about seven to 10 years old. Ollie is a product of Rangle, and she is now a grandmother. Ollie’s siblings are Ripple (2005), Mocha (2009), Bubbles (2012), Piper (2020), and Dixon (2021). Ollie is a young 10-year-old this fall and should be as productive as her mom Rangle.

Okay, so we noted some great family trees that are sprouting here in North Marco Island, Florida, but what about the fathers of these offspring? Who’s your daddy? Well, there are no wedding rings in dolphin world and adult females might partner with several different males throughout a year’s time.

However, with a pregnancy period of 12 months, the team can backtrack and research our records to see which males were courting these females a year before a birth took place. For example, Rakes gave birth in August of this year. During that same month one year ago, the only males documented traveling with Rakes were Bangle and Fich. More than likely, one of those boys is the dad of young Ash.

Also, Patch’s Twin was seen with new baby Autumn on September 22. Researching one year ago, the only two males sighted with her, for a full month period, were males Notch and Sinbad. Again, it is very likely that one of those two fathered young Autumn.

Without the ability to conduct DNA tests on our males and the newborn, it is impossible for our team to know exactly which male became a dad this year, but we can make some very well-educated assumptions.

Is this the conclusion of birthing season? Likely not! Over our time on the water, there has been an average of nine babies born each year, which gives us hope that several, if not a few, may still be documented in the next few months. We will be diligently searching the Marco waters for those newborns and their moms.

You can keep up with Coastal Breeze News since we will be updating them with any new baby sightings. You can also join our Facebook page, The Dolphin Explorer Marco Island, and receive updates as they occur. Either way, or both, if you have an interest in dolphins and their quality of life, then join us! Stay tuned for more news very soon!

Bob is the lead Naturalist for the 10,000 Islands Dolphin Research Project on board the Dolphin Explorer. He is the author of two books and twice a national award winning columnists for Coastal Breeze News. He is a regular speaker at area venues and is a proud member of a crew consisting of three Florida Master Naturalists, a Marine Biologist, and a PhD Environmental Scientist. Oh yes…Bob loves his wife very much!