National Geographic USA - August 2017

(Jeff_L) #1
+20∞f
+14∞f

:KLWHPXVFOH

/LYHU

5HGPXVFOH

+HDUW

6WRPDFK

UHFRYHU\0XVFOH *LOOVXUIDFHDUHD

56.5 ftƛ

19.6 ftƛ

Z

Z

+DOIDVIDVW

+HDUW

,QWHVWLQHV 6WRPDFK
/LYHU

5HGPXVFOH :KLWH
PXVFOH

4XLFNHU$FFHOHUDWLRQ
:KLWHPXVFOHPDGHRI
IDVWWZLWFKƃEHUVDLGVVZLIWDFFHOHUDWLRQ7KH
PDNRŠVZKLWHPXVFOH
TXLFNO\WDNHVLQR[\JHQDOORZLQJLW
WRUHFRYHUUDSLGO\IRU
PRUHIUHTXHQWVSULQWV

*UHDWHU6WDPLQD
/LNHGLVWDQFHUXQQHUV
VKDUNVUHO\RQUHGPXVFOHPDGHRIVORZWZLWFK
ƃEHUVWRSRZHUWKHLU
PLJUDWLRQV,QPDNRVUHGPXVFOHFUHDWHVKHDWDQG
KDVPRUHSURWHLQVWKDW
ERRVWR[\JHQƄRZ

%HWWHU%UHDWKLQJ
7KHODUJHVXUIDFHDUHD
RIWKHPDNRŠVH[WHQVLYHJLOOVKHOSVLW
HƅFLHQWO\DEVRUE
R[\JHQZKLFKLVWKHQGLVWULEXWHGWKURXJKWKH
EORRG,WVODUJHKHDUW
SXPSVPRUHEORRG

+20
,QWHVWLQHV

9HUWHEUDOFROXPQ

6WDUWRIPXVFOH
FRQWUDFWLRQ 3URSRUWLRQRIERG\ZHLJKW
FRQVXPHGGDLO\

:DWHUƄRZ

4.6%

1%

:DWHUƄRZ

0D[OHQJWKIHHW

0D[ZHLJKWSRXQGV

Superior
Swimmer
6KRUWƃQPDNRVDQG
EOXHVKDUNVVKDUH
VRPHRIWKHVDPH
ZDWHUVEXWQRWWKH
VDPHSK\VLRORJ\
7KHPDNRKROGVD
VXEVWDQWLDOHGJH
RYHULWVFRPSHWLWLRQ


/DUJHU$SSHWLWH
7KHPDNRŠVZDUPHU
ERG\WHPSHUDWXUHH[SDQGVLWVUDQJH
EXWLWVIDVWHU
PHWDEROLVPLQFUHDVHVWKH
DPRXQWRIIRRG
LWQHHGV

*UHDWHU6WDPLQD
/LNHGLVWDQFHUXQQHUV
VKDUNVUHO\RQUHGPXVFOHPDGHRIVORZWZLWFK
ƃEHUVWRSRZHUWKHLU
PLJUDWLRQV,QPDNRVUHGPXVFOHFUHDWHVKHDWDQG
KDVPRUHSURWHLQVWKDW
ERRVWR[\JHQƄRZ

SHORTFIN MAKO
(Isurus oxyrinchus)
(1'27+(50,&


BLUE SHARK
(Prionace glauca)
(&727+(50,&


6PRRWKHU6WURNH
&HQWUDOO\SODFHGUHGPXVFOH
FRQQHFWVRQO\DWWKHPDNRŠVWDLOFUHDWLQJDVPRRWK
HƅFLHQWSRZHUVWURNH$
EOXHVKDUNŠVUHGPXVFOHFRQQHFWVWRRWKHUPXVFOHV
DQGWKHVNLQUHVXOWLQJLQD
OHVVVWUHDPOLQHGSDWWHUQ

6WURQJHU7DLO
7KHPDNRŠVFDXGDO
NHHOŞDULGJHRQWKHEDFNŞLVƄDW
ZKLFKVXSSRUWV
WKHƃQVDQGGHFUHDVHVGUDJ
DVWKHWDLOPRYHV
VLGHWRVLGH

&ROGEORRGHGEOXHVKDUNV
FDQGLYHGHHSEXWWKHLUFROG
ERGLHVPRYHVORZHUDQG
FDQŠWVWD\DVORQJDWGHSWK


9HLQVFDUU\GHR[\JHQDWHG
EORRGWRZDUGWKHKHDUW

$UWHULHVFDUU\R[\JHQDWHG
EORRGWRWKHUHGPXVFOHV

0DNRVFDQPDLQWDLQZDUPWK
LQVRPHERG\SDUWV7KLV
HQHUJ\HƅFLHQF\JLYHV
WKHPPXOWLSOHDGYDQWDJHV
VXFKDVLPSURYHGVZLPPLQJ
SHUIRUPDQFH

Free download pdf