Bottlenose dolphin - Wikipedia
The bottlenose dolphin has a single blowhole located on the dorsal surface of the head consisting of a hole and a muscular flap. The flap is closed during muscle relaxation and opens during contraction. [100]
Blowhole (anatomy) - Wikipedia
The single blowhole of a bottlenose dolphin just before going under again The V-shaped double blowhole of a gray whale. In cetology, the study of whales and other cetaceans, a blowhole is the hole (or spiracle) at the top of the head through which the animal breathes air.
All About Bottlenose Dolphins - Physical Characteristics
A bottlenose dolphin breathes through its blowhole. The blowhole is relaxed in a closed position. To open the blowhole, the dolphin contracts the muscular flap.
All About Bottlenose Dolphins - Communication & Echolocation
Bottlenose dolphins can produce both clicks and whistles at the same time. During some vocalizations, bottlenose dolphins actually release air from the blowhole, but scientists believe that these bubble trails and clouds are a visual display and not necessary for producing sound.
Dolphins Are Exhaling Microplastics - WIRED
15 hours ago · Bottlenose dolphins in Sarasota Bay in Florida and Barataria Bay in Louisiana are exhaling microplastic fibers, according to our new research published in the journal PLOS One. Tiny plastic pieces ...
Scientists find first evidence that dolphins are inhaling …
1 day ago · To test the dolphins’ breath, the researchers took samples from 11 wild bottlenose dolphins — six from Barataria Bay in Louisiana, and five from Sarasota Bay in Florida — during catch-and-release health assessments in May and June 2023. The study team held up petri dishes to the mammals’ blowhole, through which dolphins inhale and exhale.
Structural and functional imaging of bottlenose dolphin
Oct 1, 2004 · Bottlenose dolphins were submitted to structural (CT) and functional(SPECT/PET) scans to investigate their in vivo anatomy and physiology with respect to structures important to hearing and echolocation.
How does a nose evolve into a blowhole? Study suggests there's …
Apr 27, 2021 · 3D digital reconstructions from CT scans showing bisected skulls of a white-tail deer (Odocoileus virginianus; top) and bottlenose dolphin (Tursiops truncatus; bottom) with the bony nasal passage...
Disturbing Discovery: Dolphins Breathe Out Microplastics
2 days ago · Now, this research team has collected samples of exhaled air from five bottlenose dolphins in Sarasota Bay, Florida, and six bottlenose dolphins in Barataria Bay, Louisiana during catch-and-release health assessment studies. To capture the air, they held a collection surface over or just above each dolphin’s blowhole as it exhaled.
Plastics Are Turning Up in Dolphin Breath - The New York Times
2 days ago · Researchers studying bottlenose dolphins found polyester and other plastics in every animal they tested. By Hiroko Tabuchi Scientists have found plastic pollution almost everywhere they have ...