1Hi, it's Danny.
2In case you haven't already guessed, one of my favorite places in the world is the ocean.
3I love the waves and the water
4and learning about all the incredible creatures that live there.
5Like, have you ever seen this one?
6Looks like seaweed, doesn't it? But it's not.
7It's actually a fish called a leafy sea dragon,
8and it lives in the ocean near Australia.
9Oh, and check this one out.
10It looks like it has hands, right?
11It makes sense that they call it the red hand fish.
12Okay, this one might be the weirdest-looking one of all.
13It's a dragon fish.
14Don't worry; even though it looks scary, it's pretty harmless.
15In fact, many of the creatures in the ocean are harmless to humans.
16Someone named Kamaya has a question about the different types of animals in the ocean.
17Let's give Kamaya a call now.
18Hi Danny!
19Hi Kamaya!
20I have a question for you.
21What's the most dangerous animal in the ocean?
22That's a great question!
23If you could ask a sea creature like this tiny damsel fish,
24they might say that this animal is the most dangerous.
25With their amazing swimming speed
26and rows and rows of sharp teeth,
27great white sharks are among the fiercest hunters in the ocean.
28So they can be pretty dangerous to fish.
29Or maybe they would tell you a blue whale is the most dangerous,
30and that would make sense since it's so huge.
31Blue whales swim through swarms of tiny creatures called krill with their mouths wide open.
32And when they do, watch out!
33They can swallow up to four tons of krill in a day.
34That's more than the weight of three of these cars!
35And that's not all they eat.
36With their mouths open like that,
37they can sometimes accidentally swallow other creatures like fish and squid in the process.
38Okay, skilled hunters like great whites or huge animals like blue whales can be pretty dangerous
39if you're a damsel fish or a tiny sea creature like krill.
40But some of you may be wondering, what about humans?
41Which ocean animal is the most dangerous to us?
42Before I go on, I'm curious.
43Which ocean animals do you think are the most dangerous to humans?
44Now would be a good time to pause the video and discuss.
45When we think about dangerous creatures, it's tempting to think of the big ones
46or the ones with sharp teeth.
47But you don't have to be big or have sharp teeth to be dangerous.
48Believe it or not, some dangerous ocean animals are pretty small.
49Like this one.
50This is a needlefish.
51Sure, they're not that big,
52but their pointy beaks are pretty sharp,
53kind of like little knives.
54And that can cause some problems,
55especially if you're a fisherman.
56See, needlefish like to jump out of the water.
57And though it's pretty rare, they can accidentally crash into fishermen sometimes,
58especially at night when the needlefish are attracted to the lights on their boats.
59Now, even though needlefish are something fishermen in places like Indonesia need to watch out for,
60they're definitely not the most dangerous ocean animal.
61That prize might go to an even smaller animal.
62Check out this blue-ringed octopus.
63A blue-ringed octopus can fit in the palm of your hands.
64But if you ever find one on the beach or underwater,
65you definitely wouldn't want to hold it.
66Their saliva is venomous
67so venomous that a single bite can be deadly.
68See those cool-looking blue rings?
69They flash across their bodies when they're scared or upset.
70A lot of venomous animals have beautiful patterns and colors like that.
71And though we may be tempted to get close to get a better look,
72those patterns are a sign to stay away.
73So it's important to respect them and give them space.
74The blue-ringed octopus isn't the only venomous animal in the ocean.
75There are actually lots of them.
76But luckily, they don't all hang out where people swim.
77But there are some venomous creatures that do,
78like jellyfish.
79Jellyfish like this one don't try to attack humans on purpose.
80But they do float close to beaches in places like Australia and Indonesia,
81where people swim.
82And that can make them pretty dangerous.
83See their tentacles?
84The venomous darts on those tentacles can sting you,
85and it can hurt.
86Believe me, I know.
87I was once stung by a medusa jellyfish in Italy.
88There I was, just standing in the water on a rock,
89and it caught me by surprise. Ouch!
90I still have the mark.
91Now, most jellyfish stings will only hurt for a while, like the sting I got, and that's it.
92But not if you get stung by this type of jellyfish.
93This is a sea wasp,
94one of the most dangerous animals in the ocean.
95The sea wasp has one of the most powerful venoms in the world,
96even more powerful than a cobra's or rattlesnake's.
97which makes them really dangerous to humans.
98Okay, don't panic.
99At beaches where jellyfish like the sea wasp swim,
100lifeguards are trained to monitor when groups of them get close to shore.
101And when they do, they warn people to stay out of the water.
102Sometimes they even close the beach until they go away.
103So you don't need to be afraid to get in the water.
104The most important thing to remember with all of these dangerous ocean animals
105is to pay attention when you're swimming.
106When I'm in the ocean, I wear goggles so I can see better,
107and I always swim with a buddy so we can keep an eye out for each other.
108That way, I can swim safely with all the ocean animals that I might meet along the way.
109In summary, it's not just the huge animals with sharp teeth that are dangerous.
110There are smaller animals that can be dangerous for other reasons,
111like their sharp, pointy beaks or venom-filled saliva.
112And though we may not know for sure which ocean animal is the most dangerous,
113we do know that because of its super strong venom
114and because of how close it swims to shore,
115the sea wasp jellyfish is one of the most dangerous creatures of all.
116Not just in the ocean, but in entire world.
117That's all for this week's question.
118Thanks, Kamaya, for asking it!