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Migration


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aspect
one part of a situation, problem, subject, etc
Diurnal
active during the day
endure
to live under difficult conditions
fascinate
to interest someone a lot
Feat
a difficult act or achievment
hemisphere
half of a sphere, especially the Earth
imperative
a priority , an urgent need
Nocturnal
active at night
obscure
to prevent something from being seen or heard
optimal
best , most favourable
species
type : a basic group in biological classification
stray
to leave the correct rout : become separated from the group
windswept
unprotected from the wind
respond
to say or do something as a reaction to something that has been said or done
Unerringly
without making errors
exhibit
to show something publicly