hunt

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prey

(a)  

avoid

(a)  

own making

(a)  

habit

(a)  

daytime

(a)  

economy

(a)  

exploit

(a)  

creature

(a)  

alternative

(a)  

trade

(a)  

thoroughly

(a)  

occupy

(a)  

favour

(a)  

make a go of

(a)  

probable

(a)  

nocturnal

(a)  

ancestry

(a)  

mammal

(a)  

dinosaur

(a)  

ancestor

(a)  

survive

(a)  

scrap

(a)  

mysterious

(a)  

mass

(a)  

extinction

(a)  

emerge

(a)  

daylight

(a)  

substantial

(a)  

absence

(a)  

obviously

(a)  

insect

(a)  

deep-sea fish

(a)  

whale

(a)  

muddy

(a)  

obstructed

(a)  

scatter

(a)  

plenty of

(a)  

impossible

(a)  

manoeuvre

(a)  

lantern

(a)  

searchlight

(a)  

fireflies

(a)  

bacteria

(a)  

process

(a)  

consume

(a)  

amount

(a)  

mate

(a)  

prohibitive

(a)  

tiny

(a)  

pinprick

(a)  

distance

(a)  

dark night

(a)  

expose

(a)  

directly

(a)  

source

(a)  

itself

(a)  

vastly

(a)  

detect

(a)  

fraction of

(a)  

bounce off

(a)  

scene

(a)  

immensely

(a)  

brighter

(a)  

headlight

(a)  

illuminate

(a)  

path

(a)  

signal

(a)  

whether

(a)  

expense

(a)  

exception

(a)  

weird

(a)  

apart from

(a)  

manufacture

(a)  

blind

(a)  

uncanny

(a)  

sense of

(a)  

facial vision

(a)  

reported

(a)  

bit

(a)  

fact

(a)  

in the front of

(a)  

sensation

(a)  

refer

(a)  

phantom limb

(a)  

footsteps

(a)  

sound

(a)  

presence of

(a)  

discover

(a)  

build - built - built

(a)  

principle

(a)  

measure

(a)  

depth

(a)  

technique

(a)  

invent

(a)  

matter

(a)  

weapons

(a)  

adapted

(a)  

detection

(a)  

submarine

(a)  

rely

(a)  

device

(a)  

pioneer

(a)  

feats of

(a)  

navigation

(a)  

strike

(a)  

dumb

(a)  

admiration

(a)  

technically

(a)  

waves

(a)  

sonar

(a)  

underlying

(a)  

scientific

(a)  

responsible

(a)  

detail

(a)  

apply

(a)  

zoologist

(a)  

coin

(a)  

term

(a)  

echolocation

(a)  

military

(a)  

seabed

(a)  

sophisticated

(a)  

inaccurate

(a)