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The tiger shark is considered to be one of the most dangerous sharks to humans. [1] Although it is found in the Red Sea it is not usually seen near reefs during the daytime. The Grey reef shark is territorial and may be aggressive, and has been involved in non-fatal attacks on divers.
Cyanobacteria (blue-green algae) bloom on Lake Erie (United States) in 2009. These kinds of algae can cause harmful algal bloom. A harmful algal bloom (HAB), or excessive algae growth, sometimes called a red tide in marine environments, is an algal bloom that causes negative impacts to other organisms by production of natural algae-produced toxins, water deoxygenation, mechanical damage to ...
Deadliest animals as of 2016 [1] This is a list of the deadliest animals to humans worldwide, measured by the number of humans killed per year. Different lists have varying criteria and definitions, so lists from different sources disagree and can be contentious.
Oceanic whitetip shark swimming near a diver in the Red Sea. Oceanographic researcher Jacques Cousteau described the oceanic whitetip as "the most dangerous of all sharks". [21] Author and big-game fisherman Ernest Hemingway depicted them as aggressive opportunists that attacked the catch of fishermen in The Old Man and the Sea. [22]
It is the most widespread species of stonefish, mostly found in shallow waters of the Red Sea and the Indo-Pacific. [3] It possesses highly effective venom which can be lethal to humans. [ 4 ] It is the type species of Synanceia .
Several shipping companies and a few liquefied natural gas (LNG) tankers have decided to avoid the world's main East-West trade route, following attacks launched by Yemen's Houthi group on ...
Only some non-native species are considered invasive. While nearly 200 non-native species have moved into the region and established populations, Lower said scientists are watching another 100 to ...
Recent footage of shoals of these animals demonstrates a tendency to meet unfamiliar objects aggressively. Having risen to depths of 130–200 m (430–660 ft) below the surface to feed (up from their typical 700 m (2,300 ft) diving depth, beyond the range of human diving), they have attacked deep-sea cameras and rendered them inoperable.