Marine Bio: Penguins/Turtles
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what order does the penguin belong to?
which penguins are associated to Antartica and what's the group?
- emperor penguin (aptenodytes forsteri)
- Adelie penguins (pygoscelis adeliae)
how fast do penguins swim?
what is porpoising?
leaping through the air like a dolphin and catch breath.
how are penguins adapted to the cold?
- dense, waterproof feather.
3 types of communication for penguins
contact call, display, threat
what do penguins eat?
fish, squid, krill
what eats penguins?
leopard seals, orcas and sharks.
what's are rookeries?
during breeding season, penguins come ashore and nest in huge colonies
what type of materials do penguins use for their nests?
pebbles, bones, moss feathers and grasses.
diffrerence between adelie and emperor penguin when it comes to laying eggs
adelies: lay eggs during the summer when temperatures are above freezing. Uses small stones for nests.
emperor: lay eggs in the middle of the Antartic winter.
degrees that an emperor penguin would usually lay their eggs
- temperatures -75 degrees.
- Winds will blow up to 120 miles an hour.
how long does a father penguin stand with his egg?
what's a brood patch?
fold of skin which covers an egg so that it stays warm.
what's a crop
a digestive organ that stores food before it's processed. used when an egg hatches and mom penguin hasn't arrived yet.
human impact on Penguins?
- -introduction of predators
- -building activites
- -trash in the oceans
what happened on June 23, 2000?
ore carrier Treasurer caused an oil spill in the islands off south Africa.
the shell of a turtle is composed of two layers which are...
- outer layer: keratin
- inner layer: bone
whats the dorsal surface of a shell?
front limbs vs back limbs
- front: large flippers
- back: paddle shaped and used for steering and digging nests
what's the largest?
description of a leather back?
- size: 2 meters in length
- weight: 450 kg
description of kemp's ridley
how long do sea turtles live?
up to 200 years
how fast do leatherbacks swim?
32 km per hour
how long can they stay underwater?
40 min. on a single breath
how do you differentiate between the different turtle species?
size, by the pattern of the scales on their top shell, or carapace.
how do turtles gain buoyancy
fatty deposits and lightweight bones.
what's the diet of turtles?
turtles have strong jaws which can help open the shells of crabs, clams and other shelled animals.
what do loggerhead turtles eat?
mollusks, crustaceans, fish and jellyfish.
what do hawksbills eat?
same + algea
when do female turtles go off to lay her eggs?
how long does a baby turtle develop inside the egg?
where are most of the green sea turtles found?
atlantic and pacific oceans.
In one turtle study, turtles were tagged in ____ Island and were later then captured in ____
how did these young turtles live?
floating through the clumps of seaweed.
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