Dolphins have a streamlined fusiform body, adapted for fast swimming. The tail fin, called the fluke, is used for propulsion while the pectoral fins, together with the entire tail section, provide directional control. The dorsal fin, in those species that have one, provides stability while swimming. Though varying by species, basic coloration patterns are shades of grey, usually with a lighter underside and often with lines and patches of different hue and contrast. Unlike most mammals, dolphins do not have hair, except for a few hairs around the tip of their rostrum (beak) which they lose shortly before or after birth.[23] The only exception to this is the Boto river dolphin, which has persistent small hairs on the rostrum.
Senses
Most dolphins have acute eyesight, both in and out of the water, and they can hear frequencies ten times or more above the upper limit of adult human hearing.[31] Though they have a small ear opening on each side of their head, it is believed hearing underwater is also, if not exclusively, done with the lower jaw, which conducts sound to the middle ear via a fat-filled cavity in the lower jaw bone. Hearing is also used for echolocation, which all dolphins have. Dolphin teeth are believed to function as antennae to receive incoming sound and to pinpoint the exact location of an object.[32] Beyond locating an object, echolocation also provides the animal with an idea on the object’s shape and size, though how exactly this works is not yet understood.[33] The Indus Dolphin is effectively blind. This may be because not much light penetrates the waters of the Indus river (due to suspended sediments), making the need for vision unnecessary.
The dolphin’s sense of touch is also well-developed, with free nerve endings densely packed in the skin, especially around the snout, pectoral fins and genital area. However, dolphins lack an olfactory nerve and lobes, and thus are believed to have no sense of smell.[35] They do have a sense of taste and show preferences for certain kinds of fish. Since dolphins spend most of their time below the surface, tasting the water could function like smelling, in that substances in the water can signal the presence of objects that are not in the dolphin’s mouth.
A group of dolphins is called a “school” or a “pod”. Male dolphins are called “bulls”, females “cows” and young dolphins are called “calves”.
27 комментариев
1xbet приложение says
4 марта, 2023 at 12:051xBet является очень известных на рынке. 1xbet приложение Огромный выбор событий из мира спорта и киберспорта, множество открытых линий, самые высокие коэффициенты. Также, БК имеет широкий функционал и одна из немногих дает возможность совершать ставки по уникальным промокодам. Используя их, вы можете получить настоящие деньги, не внося абсолютно никаких средств. Это реально! Узнать актуальный промокод вы можете прямо сейчас, однако использовать его необходимо в соответствии с условиями и инструкциями, которые приведены ниже.
cheapest cialis 20mg says
16 ноября, 2023 at 18:00It is the best time to make some plans for the
future and it’s time to be happy. I have read this post and if I could I wish to suggest you few interesting things or advice.
Perhaps you could write next articles referring to this article.
I wish to read more things about it!
asiabet88slotgame says
3 декабря, 2025 at 03:45Spinning those reels on AsiaBet88SlotGame, and the graphics are pretty tight! Getting into it really fast. It’s a fun way to kill time. So check out asiabet88slotgame.
yolo247appforandroid says
7 декабря, 2025 at 12:20Yo, just downloaded the yolo247appforandroid! Seems pretty slick. Gonna give it a whirl and see if it lives up to the hype. Fingers crossed for some wins! Check it out here: yolo247appforandroid
dafabetaddmoney says
8 декабря, 2025 at 16:04Quick and easy guide to dafabetaddmoney! Found it super helpful when topping up my account. Simple steps and clear instructions. Makes funding my bets a breeze. Cheers! dafabetaddmoney
88luckyph says
31 декабря, 2025 at 06:18That’s a solid analysis! Seeing more platforms like 88 lucky ph app download cater to Filipino players with fast PHP transactions is awesome. Instant crediting & 24/7 support are key for a great experience! 🔥
x6666gamelogin says
16 января, 2026 at 04:41The login on X6666gamelogin was surprisingly simple. Got straight into the action. Quick and easy to use, recommend checking out x6666gamelogin.
h666gameonline says
16 января, 2026 at 04:41H666gameonline’s not bad, got a decent selection of online stuff. Give h666gameonline a try if you want some easy access!
x222game says
16 января, 2026 at 04:42Yo, x222game is legit! Had a blast playing there last night. Solid selection of games and decent payouts. Check it out x222game.
jilijili says
19 января, 2026 at 20:41jilijili https://www.lijilijili.com
jlbosslogin says
20 января, 2026 at 16:30That’s a solid point about bankroll management – crucial for any serious player! Seeing platforms like jlboss log in download offer diverse games really highlights the need for strategy. It’s about enjoying the experience responsibly, whether it’s slots or live tables!
peso99 says
24 января, 2026 at 19:46peso99 https://www.repeso99.net
jl10 says
25 января, 2026 at 06:00jl10 https://www.gojl10.net
phl789 says
9 февраля, 2026 at 00:05This is a beautifully detailed exploration of dolphin physiology! The way echolocation works through their jawbone structure is fascinating. I study user engagement systems, and dolphins’ natural sensory processing reminds me of how phl789 games optimize audio feedback loops for immersive experiences. Nature’s engineering never ceases to amaze!
phlruby says
9 февраля, 2026 at 17:26[3239]PHLRuby Online Casino: Easy Login, Register & Download the Slot App APK for the Best Gaming Experience in the Philippines. Join PHLRuby Online Casino for the best gaming in the Philippines! Fast PHLRuby login, easy register, and PHLRuby download APK for the top slot app. Play today! visit: phlruby
jl777 says
9 февраля, 2026 at 20:56[3597]jl777 slots|jl777 download|jl777 login|jl777 giris|jl777 casino Experience the ultimate gaming thrill at jl777, the Philippines’ premier online casino. Secure your jl777 login to play top-rated jl777 slots and live casino games. Get the jl777 download for mobile access and enjoy seamless jl777 giris entry for big wins and 24/7 entertainment. visit: jl777
jili77appdownloadfree says
12 февраля, 2026 at 02:23Jili77 app download for free? Yes, please! Got it downloaded and it runs like a dream. No lag, smooth gameplay, and lots of options. The best part? No money needed! Ready to try jili77appdownloadfree?
ph33 login says
12 февраля, 2026 at 02:24Ph33 login was a breeze! Got straight in and started playing my favorite slots. No hassle just pure uninterrupted fun. Get the app and see it yourself: ph33 login!
vswina1 says
12 февраля, 2026 at 02:24Vswina1 offers pretty good quality for its selection of games. Nice graphics, simple interface, and you can win some real cash It’s worth giving a try. So give it a look: vswina1!
boss77 says
1 марта, 2026 at 11:13That’s a fascinating point about roulette variance! It really highlights why a solid bankroll is key. Thinking of platforms like boss77 game, a strategic approach feels even more important – especially with their diverse game selection. Good read!
gbetlogin says
21 марта, 2026 at 23:28Caught in a boring meeting again! Just discovered how gbet login’s biometric onboarding saves time-finally seamless access without passwords. gbet login vip looks promising for 2027 trends.
juegos casino caliente says
3 апреля, 2026 at 10:04The Juegos Casino Caliente selection is pretty impressive. They have a ton of different games from different providers. You are bound to find something you like. Explore the games: juegos casino caliente
phl63 login says
3 апреля, 2026 at 10:04Need the PHL63 login? Here’s the easy access link! phl63 login. Best of luck!
nesine altılı says
21 апреля, 2026 at 08:17Been using Nesine for my altılı bets. Pretty solid platform, easy to navigate. Could use a bit more analysis tools though. Check it out here: nesine altılı
matpet says
21 апреля, 2026 at 08:17I think you might have meant Matbet? If so, check them out for streaming and sports action. : matpet
nesine çekiliş sonuçları says
21 апреля, 2026 at 08:17Nesine çekiliş sonuçlarını merakla takip ediyorum. Umarım bir gün bana da çıkar! Sonuçları kontrol etmek için: nesine çekiliş sonuçları
pinoytimezone says
22 апреля, 2026 at 06:57Just found this insane mobile slot game! The interface is super smooth on my phone. Check out pinoy time zone login to try the fishing games and live tables now, guys! It loads instantly too.