Leaf High

Random mutation's role in the length of a giraffes neck and other animal traits?

Let say 5 million years ago the giraffes ancestor's neck was 2 inches long, then a random mutation occured that made one giraffes ancestor's neck a couple inches longer and then that individual could eat leaves higher in the branches and survive and pass on the genes. Today the giraffes neck is like 60 inches or longer, so does this mean that an additional random mutation needed to occure for each incremental increase in the giraffes neck. For example the neck was 2 inches, then 4, then 6..... and so on, with an individual random mutation responsible for each increase. Or was it just ONE initial random mutation that occured 5 million years ago and the rest of the length increase in the neck occured because of other reasons.

No, no, no. You're missing the basic point of how natural selection works.

You start with VARIATION. In all the world's population of giraffes, there are a range of neck lengths, some short, some long, most at some range in between. This does not have to be the result of mutations ... just basic variation that we see in all attributes (some of us are taller, some shorter).

If more giraffes are born than can survive, and eat the right kind of vegetation, then the taller ones may live a little longer and/or produce more offspring. This could be because a long-necked giraffe can eat from both tall and short branches, while short-necked giraffes can only eat from short branches ... so the long-necks can survive a drought better. Or it could be that female giraffes develop a preference for mates with longer necks (this is called sexual selection). Whatever the reason, those giraffes at the taller end of the range consistently do better than those at the shorter end ... so after millions of years, you have *very* tall individuals.

Find Popular Leaf High At eBay Below:

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Set of 2004D Wisconsin Extra Leaf High Low Uncirculated Error Quarters Pair
Set of 2004D Wisconsin Extra Leaf High Low Uncirculated Error Quarters Pair
$189.00
1858 1c Flying Eagle Cent VF EF XF High Leaves Reverse FS 1901 rare old coin
1858 1c Flying Eagle Cent VF EF XF High Leaves Reverse FS 1901 rare old coin
$70.00
2004 D 25c Wisconsin Extra Leaf High Quarter NGC MS65 SKU49144
2004 D 25c Wisconsin Extra Leaf High Quarter NGC MS65 SKU49144
$91.00
2004 D WISCONSIN HIGH LEAF PCGS MAC MS66 PQ 2ND FINEST REGISTRY SPOTLESS 027
2004 D WISCONSIN HIGH LEAF PCGS MAC MS66 PQ 2ND FINEST REGISTRY SPOTLESS 027
$630.00
2004 D WISCONSIN HIGH LEAF PCGS MAC MS66 PQ 2ND FINEST REGISTRY SPOTLESS
2004 D WISCONSIN HIGH LEAF PCGS MAC MS66 PQ 2ND FINEST REGISTRY SPOTLESS
$630.00
2004 D WISCONSIN QUARTER HIGH LEAF PCGS MAC MS 66 PQ 2ND FINEST SPOTLESS 066
2004 D WISCONSIN QUARTER HIGH LEAF PCGS MAC MS 66 PQ 2ND FINEST SPOTLESS 066
$509.40
2004 D WISCONSIN QUARTER HIGH LEAF PCGS MAC MS 66 PQ 2ND FINEST SPOTLESS 115
2004 D WISCONSIN QUARTER HIGH LEAF PCGS MAC MS 66 PQ 2ND FINEST SPOTLESS 115
$479.40
PCGS MS 64 Wisconsin High Low Leaf Error Quarters in New PCGS Two Coin Holder
PCGS MS 64 Wisconsin High Low Leaf Error Quarters in New PCGS Two Coin Holder
$475.00
2004 D Wisconsin Extra Leaf Error Quarters One High Eight Lows
2004 D Wisconsin Extra Leaf Error Quarters One High Eight Lows
$550.00
Rare 6 Coin Set 2004 D Wisconsin Quarter W High Low Leaf NGC MS 65
Rare 6 Coin Set 2004 D Wisconsin Quarter W High Low Leaf NGC MS 65
$895.00
RARE GORGEOUS BU MS 66 ERROR highlow extra leaf 2004 D WASHINGTON QUARTERS
RARE GORGEOUS BU MS 66 ERROR highlow extra leaf 2004 D WASHINGTON QUARTERS
$433.95
2004 D Wisconsin Extra Leaf High and Low Quarters Graded ANACS MS 66 Error Set
2004 D Wisconsin Extra Leaf High and Low Quarters Graded ANACS MS 66 Error Set
$575.00
2004 D WISCONSIN EXTRA LEAF HIGH STATE QUARTER PCGS MS65
2004 D WISCONSIN EXTRA LEAF HIGH STATE QUARTER PCGS MS65
$180.00
2004 D WISCONSIN QUARTER NGC MS66 EXTRA HIGH LEAF
2004 D WISCONSIN QUARTER NGC MS66 EXTRA HIGH LEAF
$149.00
2004 D NGC MS66 Wisconsin WI Quarter Extra Leaf High
2004 D NGC MS66 Wisconsin WI Quarter Extra Leaf High
$379.99
Ms68 Pr70 Proof Wisconsin Extra Leaf High Low NGC ms 68 coin error set 2004
Ms68 Pr70 Proof Wisconsin Extra Leaf High Low NGC ms 68 coin error set 2004
$17,000.00
Flying Eagle Small Cent 1858 SL Small Letters high leaf variety FS 1901
Flying Eagle Small Cent 1858 SL Small Letters high leaf variety FS 1901
$0.99
2004 D Wisconsin Extra Leaf High PCGS MS 63 Brilliant Uncirculated Nice Error
2004 D Wisconsin Extra Leaf High PCGS MS 63 Brilliant Uncirculated Nice Error
$155.00
2004 D PCGS MS63 Wisconsin Low Leaf and High Leaf State Quarter Two Coins
2004 D PCGS MS63 Wisconsin Low Leaf and High Leaf State Quarter Two Coins
$61.00
2004 D Wisconsin Extra Leaf High Statehood Quarter Graded ICG MS 63 Error Coin
2004 D Wisconsin Extra Leaf High Statehood Quarter Graded ICG MS 63 Error Coin
$145.00
2004 D WISCONSIN EXTRA HIGH LEAF STATEHOOD 25c ERROR PCGS MS 65
2004 D WISCONSIN EXTRA HIGH LEAF STATEHOOD 25c ERROR PCGS MS 65
$299.99
2004 D Wisconsin Variety Set Extra High Leaf  Low Leaf NGC MS64
2004 D Wisconsin Variety Set Extra High Leaf Low Leaf NGC MS64
$395.00
C5453 2004 D WISCONSIN EXTRA HIGH LEAF STATE QUARTER PCGS MS64
C5453 2004 D WISCONSIN EXTRA HIGH LEAF STATE QUARTER PCGS MS64
$275.00
2004 D WISCONSIN QUARTER HIGH LEAF PCGS MAC MS 66 PQ 2ND FINEST SPOTLESS 558
2004 D WISCONSIN QUARTER HIGH LEAF PCGS MAC MS 66 PQ 2ND FINEST SPOTLESS 558
$584.35
C7197 2004 D WISCONSIN EXTRA LEAF HIGH WASHINGTON STATE QUARTER NGC MS65
C7197 2004 D WISCONSIN EXTRA LEAF HIGH WASHINGTON STATE QUARTER NGC MS65
$350.00
2004 D COMPLETE SET WISC EXTRA LEAF HIGH  LOW PCGS MS64  1 No Error 2004 D
2004 D COMPLETE SET WISC EXTRA LEAF HIGH LOW PCGS MS64 1 No Error 2004 D
$299.95
1858 1C Small Letters High Leaves Flying Eagle Cent VG K1864
1858 1C Small Letters High Leaves Flying Eagle Cent VG K1864
$40.00
2004 D WISCONSIN 25c 2 COIN VARIETY MATCHED SET EXTRA HIGH  LOW LEAF NGC MS 65
2004 D WISCONSIN 25c 2 COIN VARIETY MATCHED SET EXTRA HIGH LOW LEAF NGC MS 65
$299.99
2004 D Wisconsin Extra Leaf High Statehood Quarter graded NGC MS 67 Error
2004 D Wisconsin Extra Leaf High Statehood Quarter graded NGC MS 67 Error
$749.00
2004 D Extra Leaf High Low Wisconsin State Quarter 25C 3 Coin Error Set NGC MS65
2004 D Extra Leaf High Low Wisconsin State Quarter 25C 3 Coin Error Set NGC MS65
$399.99
C9013 2004 D WISCONSIN EXTRA LEAF HIGH STATE QUARTER PCGS MS64
C9013 2004 D WISCONSIN EXTRA LEAF HIGH STATE QUARTER PCGS MS64
$275.00
2 Coin Set 2004 D WISCONSIN QUARTER W HIGH and LOW LEAF PCGS 65
2 Coin Set 2004 D WISCONSIN QUARTER W HIGH and LOW LEAF PCGS 65
$475.00
2004 D Wisconsin MS 67 ERROR high  low leaf WASHINGTON QUARTERS
2004 D Wisconsin MS 67 ERROR high low leaf WASHINGTON QUARTERS
$1,900.00
2004 D WISCONSIN STATE QUARTER EXTRA LEAF HIGH NGC MS 67
2004 D WISCONSIN STATE QUARTER EXTRA LEAF HIGH NGC MS 67
$999.00
2004 D WISCONSIN 25c 2 COIN VARIETY SET EXTRA HIGH  LOW LEAF BOTH PCGS MS 65
2004 D WISCONSIN 25c 2 COIN VARIETY SET EXTRA HIGH LOW LEAF BOTH PCGS MS 65
$474.99
Set of 2004D Wisconsin Extra Leaf High Low Uncirculated Error Quarters Pair
Set of 2004D Wisconsin Extra Leaf High Low Uncirculated Error Quarters Pair
$310.00
C5102 2004 D WASHINGTON STATE QUARTER WISCONSIN EXTRA LEAF HIGH NGC MS64
C5102 2004 D WASHINGTON STATE QUARTER WISCONSIN EXTRA LEAF HIGH NGC MS64
$275.00
2004 D WISCONSIN 25 CENTS HIGH  LOW LEAF MINT ERROR BOTH NGC MS64
2004 D WISCONSIN 25 CENTS HIGH LOW LEAF MINT ERROR BOTH NGC MS64
$750.00
2004 D Wisconsin Extra High  Low Leaf Quarters + 2004 D Doubled Ear Dime Rare
2004 D Wisconsin Extra High Low Leaf Quarters + 2004 D Doubled Ear Dime Rare
$305.00
2004 D Wisconsin Extra Leaf High PCGS MS 65 Investment Grade BU Nice Error
2004 D Wisconsin Extra Leaf High PCGS MS 65 Investment Grade BU Nice Error
$265.00



List Of Recently Purchased Leaf High:


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