The Lurkdragon's Lair

Fifty percent animals, fifty percent fandom, one-hundred percent nerd.

Posts tagged sharks

390 notes

rhamphotheca:

The Whale Shark (Rhincodon typus) 
… is the largest living species of fish, with individuals reaching lengths of 41 feet (12.5 m) or more. Though fearsome in size, Whale Sharks are gentle giants. They feed on plankton and small fish, and are generally quite tame and docile around divers. 
Unlike dolphins and whales, which give birth to a single large baby, Whale Sharks are ovoviviparous - they produce up to a few hundred eggs, which the mother incubates within her body. They are fertilized slowly using stored sperm, and babies are birthed with regularity rather than in one large event. When born, young Whale Sharks are dwarfed by their mother, measuring only 16 to 24 inches (40 to 60 cm) long. Individuals take a long time to reach sexual maturity, first starting to breed around 30 years old, but may live to ages of 70 or more years. 
They inhabit tropical and sub-tropical oceans worldwide; on North America’s coasts, they are primarily found off California in the Pacific, and sometimes as far north as New York in the Atlantic.
photo by Zac Wolf, borrowed from Wikimedia
(via: Peterson Field Guides)

rhamphotheca:

The Whale Shark (Rhincodon typus)

… is the largest living species of fish, with individuals reaching lengths of 41 feet (12.5 m) or more. Though fearsome in size, Whale Sharks are gentle giants. They feed on plankton and small fish, and are generally quite tame and docile around divers.

Unlike dolphins and whales, which give birth to a single large baby, Whale Sharks are ovoviviparous - they produce up to a few hundred eggs, which the mother incubates within her body. They are fertilized slowly using stored sperm, and babies are birthed with regularity rather than in one large event. When born, young Whale Sharks are dwarfed by their mother, measuring only 16 to 24 inches (40 to 60 cm) long. Individuals take a long time to reach sexual maturity, first starting to breed around 30 years old, but may live to ages of 70 or more years.

They inhabit tropical and sub-tropical oceans worldwide; on North America’s coasts, they are primarily found off California in the Pacific, and sometimes as far north as New York in the Atlantic.

photo by Zac Wolf, borrowed from Wikimedia

(via: Peterson Field Guides)

Filed under sharks whale sharks elasmobranchii fish wildlife marine life queue

32,637 notes

sharkhugger:

HUGGERS… meet the Shy Shark!  THIS IS A THING!  THIS IS REALLY A THING….! 

450 millions years of evolution and 'if i can't see it, it can't hurt me' is the best they could come up with!  WAY too adorable!  

You know, there are so many other jawsome sharks out there - shark week shouldn’t just focus on the white shark.  I love a good breach as much as the next shark lover, but these guys are too cute!  <3

(via koryos)

Filed under sharks shy sharks fish wildlife elasmobranchii marine life queue

4,312 notes

Common Shark Myths

the-shark-blog:

Myth: Sharks are hungry man eaters looking for any chance to attack.

FactSharks are not hunting humans. Most “attacks” on humans are mistakes due to poor water visibility or are inquisitive bites. This is why there are so many more bites than fatalities.

Myth: Sharks are all the same.

FactShark species are incredibly diverse with very different sizes, shapes, habitats, diets and behaviors. There are approximately 500 shark species, but only three (white, tiger and bull) are responsible for the majority of all bites.

Myth: All sharks are voracious predators.

FactBasking sharks and whale sharks, the two largest species of sharks, are filter feeders that feed on fish eggs and other tiny organisms.

Myth: The only good shark is a dead shark.

Fact: Sharks play a vital role in keeping marine ecosystems balanced and healthy. Additionally, sharks help coastal economies through ecotourism. Many people are willing to pay large sums of money for the opportunity to dive with sharks.

Myth: If a shark attack has not occurred, it means they do not live in that area.

FactSharks inhabit all of the world’s oceans – from inshore, coastal waters to the open, deep-blue sea – and some can even be found in freshwater rivers and lakes.

Myth: Sharks have walnut-sized brains.

Fact: Sharks can exhibit complex social behavior and some species can communicate with body language, live in groups and even hunt in packs. Sharks and rays have some of the largest brains among all fish, with brain-to-body ratios similar to birds and mammals.

Myth: All sharks must swim constantly.

Fact: While most sharks do need to swim continuously in order to pass water over their gills and breathe, some sharks are able to actively pump water over their gills while resting on the sea floor.

Myth: Shark fins grow back if they are cut off.

Fact: A finned shark thrown overboard will drown, bleed to death or be eaten by other sharks.

Myth: Shark fins are flavorsome, nutritious and offer medicinal properties.

Fact: Shark fins offer no flavor or nutritional value. In fact, as top predators, sharks accumulate contaminants from their prey, such as mercury, which has serious health effects even at low doses.

Myth: Sharks have no predators.

Fact: The greatest threat to sharks is HUMANS. Each year, tens of millions of sharks are killed for their fins. We are disrupting the ocean ecosystem by killing too many sharks.

[source]

(via theoceanisourhome)

Filed under animal death long posts sharks wildlife marine life elasmobranchii shark finning rock on fish