There are also other threats to species such as the pervasive plastic pollution in the ocean—a recent study found that 100 percent of sea turtles had plastic or microplastic in their systems.

This loggerhead was entangled in a line dragging a plastic bucket. Photo: U.S. Coast Guard, Matt Strucic

Emerging diseases affecting more and more wildlife species such as bats, frogs and salamanders are the result of an increase in travel and trade, which allows pests and pathogens to hitch rides to new locations, and warming temperatures that enable more pests to survive and spread. Wildlife trafficking also continues to be a big problem because for some species, the fewer members there are, the more valuable they become to poachers and hunters.

According to the International Union for Conservation of Nature’s Red List of Threatened Species, over 26,500 species are in danger of extinction. This includes 40 percent of amphibians, 34 percent of conifers, 33 percent of reef-building corals, 25 percent of mammals and 14 percent of birds. In the U.S., over 1,600 species are listed as threatened or endangered.

be treated as materials. Thus I believe that by adding laws that prevent

animals from being farmed and any meat consumed or sold must be

hunted from in the wild,then humans will realise how little animals are in 

the wild and will probably decrease the demand for meat thus solving 

animal cruelty. A important part of this is to grant animal rights so that

animals can roam freely and won’t restricted to staying in a location decided by humans for are own convenience but I do believe that we

should ban wild animals from urban areas for safety purposes .

While it may seem unimportant if we lose one salamander or rat species, it matters because all species are connected through their interactions in a web of life. A balanced and biodiverse ecosystem is one in which each species plays an important role and relies on the services provided by other species to survive. Healthy ecosystems are more productive and resistant to disruptions.

A recent study found that extreme environmental change could trigger an “extinction domino effect.” One of the study’s authors said, “Because all species are connected in the web of life, our paper demonstrates that even the most tolerant species ultimately succumb to extinction when the less-tolerant species on which they depend disappear.” So saving one species means saving its habitat and the other species that live there too.

“When you lose one species, it affects the ecosystem and everything around it gets a little bit more fragile while it adapts to change,” said Kelsey Wooddell, assistant director of the Earth Institute Center for Environmental Sustainability. “Even if it’s not a keystone species [a species that others in an ecosystem depend on], its loss will weaken the functionality of the entire ecosystem, which just makes it easier for that ecosystem to stop working.”

Animals should be protected because science increasingly demonstrates that animals are more sensitive, aware, and intelligent than has long been believed in places like the US. The knowledge that animals are very likely aware of the conditions in which they’re kept in places like factory farms, or the abuses they suffer during laboratory experiments, means that a change in practices is long overdue. 

Animals also play a critical role in the ecosystems and biospheres that make life on Earth possible for humans. Protecting animals—as well as the oceans, forests, and grasslands they inhabit—will help safeguard the future for all species, including homo sapiens.

IS ANIMAL PROTECTION EFFECTIVE?

Animal protection can be very effective, whether through grassroots advocacy, engaging with corporations to hold them accountable, or lobbying elected officials to enact protective legislation. The Humane League has secured many victories for animals over the years. Below are a few examples of how animal protection can be effective at reducing abuses for millions of living beings:

More recently, Whole Foods Market, Aldi, and Restaurant Brands International (RBI) joined the ranks of large corporations that are making strides to improve the lives of the chickens in their supply chains.

They look so sad.

 Altering ecosystems through cascading effects

If a species has a unique function in its ecosystem, its loss can prompt cascading effects through the food chain (a “trophic cascade”), impacting other species and the ecosystem itself.

An often-cited example is the impact of the wolves in Yellowstone Park, which were hunted to near extinction by 1930. Without them, the elk and deer they had preyed upon thrived, and their grazing decimated streamside willows and aspens, which had provided habitat for songbirds. This left the stream banks susceptible to erosion, and a decline in songbirds allowed mosquitoes and other insects the birds would have eaten to multiply. When the wolves were reintroduced to the park in 1995, they once again preyed on the elk; plant life returned to the stream banks and along with it, birds, beavers, fish and other animals. (Note: David Bernhardt, acting secretary of the Department of the Interior, just announced a proposal to strip gray wolves of their endangered status in the Lower 48 states.)

Kelp forests are another classic example. They play an important role in coastal ecosystems because they provide habitat for other species, protect the coastline from storm surges and absorb carbon dioxide.

Yet kelp forests are rapidly getting mowed down by exploding numbers of purple sea urchin. California sea otters eat the purple sea urchins that feed on giant kelp. These otters used to number in the hundreds of thousands to millions, but their population has been reduced to about 3,000 as a result of unchecked hunting in the 19th century and pollution. Moreover, in 2013 the sunflower starfish, which also eats purple sea urchins, began dying because of a virus that was likely exacerbated by warmer waters. Without the sea otter and the sunflower starfish predators, the purple sea urchin began feasting on the kelp forests, which declined 93 percent between 2013 and 2018. (A new study  found that kelp forests are now also threatened by ocean heat waves.) The explosion of sea urchins not only damaged the kelp ecosystem, it also had serious impacts on Northern California’s red urchins that are valued for sushi. Fish that need the kelp forests for spawning, such as sculpin, rock cod and red snapper may become vulnerable in the future as well.