Otters
Wolf Fish
Beavers
Tiger Sharks and Wolves
Keystone Species
100
Do otters make good pets?
No, they are carnivores and will likely take a finger, toe, nose or ear from you.
It is also bad for the otter, as they are wild animals.
100
Are Wolf Fish cute animals?
No.
100
Are Beavers keystone species?
Yes
100
List three things that have been found inside a tiger shark.
License plates
Rubber boots
A bag of money
A chicken coop
A human leg
A suit of armour
100
What is a keystone species?
A species that maintains the health and biodiversity of an eco system.
200
What do otters hold while sleeping?
Each other's hands
200
Do Wolf Fish mate for life?
Yes, and they work together to raise their children.
200
Why are beavers considered keystone species?
They create ponds and dams that other animals use as a resource.
200
Why are tiger sharks considered keystone species?
They keep the populations of other animals under control.
200
Most keystone species are what kind of animal?
Predator
300
How much food (as represented as a percentage of their own body weight) do otters eat in a day?
25%
300
Why are wolf fish considered a keystone species?
They eat sea urchins, which can destroy kelp forests.
300
What is one reason listed for beavers building dams?
The predators that live in the same area will hunt beavers and win easily.
300
What happened to the wolves at Yellow Stone national park?
Humans hunted them to extinction.
300
Which actor is referenced twice in this video?
Will Smith
400
When did humans realise otters were a keystone species?
When they were nearly hunted to extinction.
400
Both sea otters and wolf fish are considered keystone species, yet the sea otter often discussed first. Why do you think this is?
Wolf Fish are uggo
Otters are cute
400
What kind of animal is the beaver?
200 points: Mammal
400 points: Rodent
400
What happened in Yellow Stone after the wolves were eliminated?
Animals that the wolves preyed on, such as elk, exploded in number and ate nearly all of the vegetation in the area.
400
After the wolves were removed from Yellow Stone national park, which other keystone species was impacted?
Double points if you can explain how they were impacted.
Beavers.
The elk that wolves usually ate had no predators, which meant that consumed more food. One of their food sources was the willow tree. This is the same willow tree that beavers use to construct their damns, which meant that beavers could not build their defences. The beavers were then easily attacked, as well as all the animals who rely on the wetlands created by the beaver being affected.
500
Why are sea otters considered keystone species?
Sea otters eat sea urchins. These urchins can wipe out entire kelp forests, decreasing biodiversity and increasing the amount of CO2 in the atmosphere.
500
Does the Wolf Fish taste good?
Atlantic wolffish has tasty, firm, and “satisfying” flesh, almost like monkfish. Because it lives on shellfish, the flesh can also have a flavor similar to shellfish. The firm flesh can be fried or grilled and is best of all with a well fried/grilled outside and an internal temperature of about 50°C.
500
Why are beavers seen as special?
They are one of the few animals, other than humans, that modify their habitat.
500
How did we (try to) fix the situation at Yellow Stone national park?
We airdropped wolves back into the park.
500
What animal was used to first discover about keystone species?
