Archive for the 'Sharks' Category



Animal Update – August 10

Between our Baltimore and Washington, DC, venues, more than 17,500 animals representing 900 species call the National Aquarium home. There are constant changes, additions, and more going on behind the scenes that our guests may not notice during their visit. We want to share these fun updates with our community so we’re bringing them to you in our weekly Animal Update posts!

Check our blog every Friday to find out what’s going on… here’s what’s new this week!

Baby Chain Catsharks

We’ve added four baby chain catsharks to our National Marine Sanctuaries and National Parks Gallery!

Stop by and see the chain catsharks’ fluorescing eyes!

Chain catsharks have small, slender bodies, with black mottling on a lighter brown background, and fluorescing eyes. They generally stay near the bottom, and especially like rough and rocky surfaces.

Be sure to check back every Friday to find out what’s happening!

Animal Update – August 3

Between our Baltimore and Washington, DC, venues, more than 17,500 animals representing 900 species call the National Aquarium home. There are constant changes, additions, and more going on behind the scenes that our guests may not notice during their visit. We want to share these fun updates with our community so we’re bringing them to you in our weekly Animal Update posts!

Check our blog every Friday to find out what’s going on… here’s what’s new this week!

Bonnethead Sharks in New Home

Our two bonnethead sharks have moved from Wings in the Water to their new home in our Atlantic Coral Reef exhibit.

This move is due to preparations for our new exhibit, Blacktip Reef, opening in summer 2013. The new exhibit will be a vibrant new habitat replicating a salt-water Indo-Pacific ocean habitat featuring new animals including blacktip reef sharks, reticulated whiptail rays, and ornate wobbegong sharks! Click here to find out more about Blacktip Reef.

Golden Lion Tamarins

Our golden lion tamarin monkeys have been taken off exhibit for the time being as a precautionary measure due to nesting birds in the exhibit. Don’t worry, they’ll be back!

We have so many amazing animals in the Upland Tropical Rain Forest exhibit — it’s a great time to see some of them during your visit. Click here to learn more about some of the animals!

Be sure to check back every Friday to find out what’s happening!

Animal Update – April 27

Between our Baltimore and Washington, DC, venues, more than 17,500 animals representing 900 species call the National Aquarium home. There are constant changes, additions, and more going on behind the scenes that our guests may not notice during their visit. We want to share these fun updates with our community so we’re bringing them to you in our weekly Animal Update posts!

Check our WATERlog blog every Friday to find out what’s going on… here’s what’s new this week!

Diamondback Terrapin

We’ve added a young Diamondback Terrapin to our Tidal Marsh exhibit in the Maryland: Mountains to the Sea gallery!

These turtles are distinguished by their unique diamond-shaped rings on the scutes of their upper shell. Their skin is speckled with dark dots and markings unique to each animal. No two animals’ markings are identical.

They are excellent swimmers, with strong webbed feet that allow them to not only glide through the water, but also to forage and dig in the sand and sediment on the bottom. These strong swimmers are not sea turtles, however, which have flippers, not feet.

Aside from being the official Maryland State Reptile, they are the University of Maryland’s mascot — go Terps!

Leopard Shark

A new leopard shark has joined our Kelp Forest exhibit!

These sharks are typically gray or brown, with black saddles across the back and black blotches along the length of the body.

If you’re looking for it, check out the exhibit floor — leopard sharks spend much of their time near the sea floor. Because of this, their food animals are typically bottom dwellers as well, such as crabs, shrimp, clams, marine worms, and small fish.

Be sure to check back every Friday to find out what’s happening!

Animal Updates – April 13

Between our Baltimore and Washington, DC, venues, more than 17,500 animals representing 900 species call the National Aquarium home. There are constant changes, additions, and more going on behind the scenes that our guests may not notice during their visit. We want to share these fun updates with our community so we’re bringing them to you in our weekly Animal Update posts!

Check our WATERlog blog every Friday to find out what’s going on… here’s what’s new this week!

Baby Spotted Lagoon Jellies
Mastigias papua 

Our jellies lab welcomed a special delivery from the Oklahoma Aquarium: baby lagoons! They’re about a month and a half old right now, and we’ve never had this species this young before. Right now, they’re developing and growing in our jellies lab, and once they reach about four or five months old they’ll be big enough to go on exhibit.

Baby lagoon jelly

Right now they look just like tiny blue blubber jellies, but as they grow, they’ll develop spots and lose their bluish tint. Since they arrived, they’ve already started to sprout tentacles, and spots are appearing along the edges of the bells.

Jelly's first tentacle!

Quite a bit goes into giving these jellies what they need to grow and thrive. They have a high metabolism, so they’re fed at least three times a day, sometimes more. These sun-loving jellies are kept under a special metal halide light, which is a different spectrum than regular lights. Spotted lagoon jellies have a symbiotic relationship with the algae that live in them; the algae need the light to photosynthesize, and the jellies eat the waste products the algae make in the process.

Older spotted lagoon jelly

Breeding Season for Sand Tiger Sharks
Carcharias taurus
You may see staff members observing and monitoring the behavior of the sand tiger sharks in our Open Ocean exhibit. It’s breeding season for these sharks, and sometimes the males can get a bit aggressive.

Sand tiger shark

Did you know? Female sand tiger sharks do not have the expected single uterus – each female has two, and babies develop in both at the same time. In each separate uterus, the unborn pups eat each other and devour any still-unfertilized eggs until only one remains. Eventually one baby is born from each uterus – talk about survival of the fittest!

Be sure to check back every Friday to find out what’s happening!

Thoughtful Thursdays: Save the Sharks!

Many people think of sharks as frightening, sharp-toothed predators, far from being in need of our protection. In fact, people are more inclined to believe that we humans need protecting from these creatures. This couldn’t be farther from the truth: shark populations worldwide are in danger of collapse due to fishing pressures stimulated by the global demand for shark fin soup.

Every year, fins from tens of millions of sharks are used for this traditional, non-nutritional meal. Many species have been depleted nearly to the brink of extinction. As predators at or near the top of marine food webs, sharks help maintain the balance of marine life in our oceans.

Shark populations must be protected from the practice of overfishing. The National Aquarium and its partners, including the National Wildlife Federation and Oceana, are advocating on behalf of legislation that will close loopholes in current legislation that bans shark finning. We welcome your support!

Why Sharks Need Our Help

Unlike many fish species, sharks are slow to mature and have very few offspring, making them vulnerable to overexploitation. The sandbar and sand tiger sharks are two species in our mid-Atlantic waters that have faced great fishing pressure. 

Sandbar shark

Sandbar Shark at the National Aquarium


The sandbar shark, which utilizes Delaware Bay as a pupping ground, can take up to 14 years to mature, has a gestation of 11–12 months, and gives birth to 6–10 pups. The females breed only every other year. These young sandbar sharks are closely tied to the health of the marine ecosystem.

Research shows that the massive depletion of sharks has cascading effects throughout the ocean’s ecosystems. In Maryland, the depletion of sharks has caused an increase in cownose rays in the Chesapeake Bay, which threaten the oyster industry.

In the 30 years the National Aquarium, Baltimore, has been open, sharks have gone from a commercial fishery the federal government declared underutilized to the brink of extinction. In that time, hammerhead shark populations in the Atlantic have decreased by nearly 93%. Since 1986, all recorded shark populations in the northwestern Atlantic, with the exception of mako sharks, have declined by more than 50%.

Scientists warn that continual overfishing of sharks has decimated the population, which continues to dwindle and cannot sustain the current rates. The International Union for Conservation of Nature Red List of Threatened Species estimates that 30% of open ocean sharks are threatened with extinction.

What We Can Do

Recently, the National Aquarium took a stand to support the 2010 Shark Conservation Act, but we need to do more. Current federal and Maryland laws banning shark finning control shark handling practices, but do not restrict the number of sharks killed just for their fins, or the substantial market for shark fins that creates economic incentives to overfish sharks for their fins.

One of the most effective ways to protect sharks is to eliminate the market for fins by prohibiting their sale. California, Hawaii, Oregon, and Washington have all banned the possession, sale, trade, and distribution of shark fins, and now it’s our opportunity to lead.

With our support, the Maryland Legislature has introduced bills (Senate Bill 465 and House Bill 393) that would ban the possession or distribution of shark fins in the state. This legislation will establish Maryland as the first state on the East Coast ensuring we are not contributing to the supply and demand of shark fins.

The National Aquarium’s shark expert, Andy Dehart, will be testifying at both hearings in February, and the Aquarium’s Director of Conservation Laura Bankey and Director of Government Affairs Mark Yost are working closely with our partners to support the legislation as it moves through legislative channels.

What You Can Do

Let your state representatives know you care about sharks, and all the species in the marine ecosystem that depend on them! Our partners at Oceana have initiated an online advocacy campaign to support the shark fin ban in Maryland. Sign our letter today, and help save the sharks!


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