00000000  53 6f 75 6e 64 20 77 61  76 65 73 20 74 72 61 76  |Sound waves trav|
00000010  65 6c 20 66 61 73 74 20  61 6e 64 20 66 61 72 20  |el fast and far |
00000020  69 6e 20 77 61 74 65 72  2c 20 73 6f 20 73 68 61  |in water, so sha|
00000030  72 6b 73 20 68 61 76 65  20 6e 6f 20 74 72 6f 75  |rks have no trou|
00000040  62 6c 65 20 70 69 63 6b  69 6e 67 20 75 70 20 6c  |ble picking up l|
00000050  6f 77 2d 70 69 74 63 68  65 64 20 6e 6f 69 73 65  |ow-pitched noise|
00000060  73 20 66 72 6f 6d 20 6d  6f 76 65 6d 65 6e 74 73  |s from movements|
00000070  20 73 75 63 68 20 61 73  20 66 69 73 68 20 73 63  | such as fish sc|
00000080  68 6f 6f 6c 73 2c 20 73  77 69 6d 6d 65 72 73 20  |hools, swimmers |
00000090  61 6e 64 20 65 76 65 6e  20 43 6f 61 73 74 20 47  |and even Coast G|
000000a0  75 61 72 64 20 68 65 6c  69 63 6f 70 74 65 72 73  |uard helicopters|
000000b0  20 66 6c 79 69 6e 67 20  6c 6f 77 20 6f 76 65 72  | flying low over|
000000c0  20 74 68 65 20 6f 63 65  61 6e 2e 20 53 65 65 20  | the ocean. See |
000000d0  76 69 64 65 6f 20 61 74  20 73 68 61 72 6b 20 66  |video at shark f|
000000e0  61 63 74 20 23 33 30                              |act #30|

upload data to https://sharks.hexdu.mp/upload & get a hexdump
curl https://sharks.hexdu.mp & get a plaintext shark fact